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Missing data

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So missing values due to the participant are eliminated by this type of questionnaire, though this method may not be permitted by an ethics board overseeing the research. In survey research, it is common to make multiple efforts to contact each individual in the sample, often sending letters to attempt to persuade those who have decided not to participate to change their minds. However, such techniques can either help or hurt in terms of reducing the negative inferential effects of missing data, because the kind of people who are willing to be persuaded to participate after initially refusing or not being home are likely to be significantly different from the kinds of people who will still refuse or remain unreachable after additional effort.
228:, and some scholars now recommend 20 to 100 or more. Any multiply-imputed data analysis must be repeated for each of the imputed data sets and, in some cases, the relevant statistics must be combined in a relatively complicated way. Multiple imputation is not conducted in specific disciplines, as there is a lack of training or misconceptions about them. Methods such as listwise deletion have been used to impute data but it has been found to introduce additional bias. There is a beginner guide that provides a step-by-step instruction how to impute data.   4515: 88:
study of the relation between IQ and income, if participants with an above-average IQ tend to skip the question ‘What is your salary?’, analyses that do not take into account this missing at random (MAR pattern (see below)) may falsely fail to find a positive association between IQ and salary. Because of these problems, methodologists routinely advise researchers to design studies to minimize the occurrence of missing values. Graphical models can be used to describe the missing data mechanism in detail.
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to fill in a depression survey but this has nothing to do with their level of depression, after accounting for maleness. Depending on the analysis method, these data can still induce parameter bias in analyses due to the contingent emptiness of cells (male, very high depression may have zero entries). However, if the parameter is estimated with Full Information Maximum Likelihood, MAR will provide asymptotically unbiased estimates.
4539: 4527: 186:—by directly applying methods unaffected by the missing values. One systematic review addressing the prevention and handling of missing data for patient-centered outcomes research identified 10 standards as necessary for the prevention and handling of missing data. These include standards for study design, study conduct, analysis, and reporting. 166:, do not usually take into account the structure of the missing data and so development of new formulations is needed to deal with structured missingness appropriately or effectively. Finally, characterising structured missingness within the classical framework of MCAR, MAR, and MNAR is a work in progress. 125:
occurs when the missingness is not random, but where missingness can be fully accounted for by variables where there is complete information. Since MAR is an assumption that is impossible to verify statistically, we must rely on its substantive reasonableness. An example is that males are less likely
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Understanding the reasons why data are missing is important for handling the remaining data correctly. If values are missing completely at random, the data sample is likely still representative of the population. But if the values are missing systematically, analysis may be biased. For example, in a
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In some practical application, the experimenters can control the level of missingness, and prevent missing values before gathering the data. For example, in computer questionnaires, it is often not possible to skip a question. A question has to be answered, otherwise one cannot continue to the next.
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The graph shows the probability distributions of the estimations of the expected intensity of depression in the population. The number of cases is 60. Let the true population be a standardised normal distribution and the non-response probability be a logistic function of the intensity of depression.
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the missing data. Rubin (1987) argued that repeating imputation even a few times (5 or less) enormously improves the quality of estimation. For many practical purposes, 2 or 3 imputations capture most of the relative efficiency that could be captured with a larger number of imputations. However, a
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The presence of structured missingness may be a hindrance to make effective use of data at scale, including through both classical statistical and current machine learning methods. For example, there might be bias inherent in the reasons why some data might be missing in patterns, which might have
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Structured missingness commonly arises when combining information from multiple studies, each of which may vary in its design and measurement set and therefore only contain a subset of variables from the union of measurement modalities. In these situations, missing values may relate to the various
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In the case of MCAR, the missingness of data is unrelated to any study variable: thus, the participants with completely observed data are in effect a random sample of all the participants assigned a particular intervention. With MCAR, the random assignment of treatments is assumed to be preserved,
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sampling methodologies used to collect the data or reflect characteristics of the wider population of interest, and so may impart useful information. For instance, in a health context, structured missingness has been observed as a consequence of linking clinical, genomic and imaging data.
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Missing data can also arise in subtle ways that are not well accounted for in classical theory. An increasingly encountered problem arises in which data may not be MAR but missing values exhibit an association or structure, either explicitly or implicitly. Such missingness has been described as
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if the events that lead to any particular data-item being missing are independent both of observable variables and of unobservable parameters of interest, and occur entirely at random. When data are MCAR, the analysis performed on the data is unbiased; however, data are rarely MCAR.
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Woods, Adrienne D.; Gerasimova, Daria; Van Dusen, Ben; Nissen, Jayson; Bainter, Sierra; Uzdavines, Alex; Davis-Kean, Pamela E.; Halvorson, Max; King, Kevin M.; Logan, Jessica A. R.; Xu, Menglin; Vasilev, Martin R.; Clay, James M.; Moreau, David; Joyal-Desmarais, Keven (2023-02-23).
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because governments or private entities choose not to, or fail to, report critical statistics, or because the information is not available. Sometimes missing values are caused by the researcher—for example, when data collection is done improperly or mistakes are made in data entry.
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Mitra, Robin; McGough, Sarah F.; Chakraborti, Tapabrata; Holmes, Chris; Copping, Ryan; Hagenbuch, Niels; Biedermann, Stefanie; Noonan, Jack; Lehmann, Brieuc; Shenvi, Aditi; Doan, Xuan Vinh; Leslie, David; Bianconi, Ginestra; Sanchez-Garcia, Ruben; Davies, Alisha (2023-01-25).
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is a type of missingness that can occur in longitudinal studies—for instance studying development where a measurement is repeated after a certain period of time. Missingness occurs when participants drop out before the test ends and one or more measurements are missing.
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is an approach in which values of the statistics which would be computed if a complete dataset were available are estimated (imputed), taking into account the pattern of missing data. In this approach, values for individual missing data-items are not usually imputed.
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A special class of problems appears when the probability of the missingness depends on time. For example, in the trauma databases the probability to lose data about the trauma outcome depends on the day after trauma. In these cases various non-stationary
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Missing data can occur because of nonresponse: no information is provided for one or more items or for a whole unit ("subject"). Some items are more likely to generate a nonresponse than others: for example items about private subjects such as income.
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Model based techniques, often using graphs, offer additional tools for testing missing data types (MCAR, MAR, MNAR) and for estimating parameters under missing data conditions. For example, a test for refuting MAR/MCAR reads as follows:
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These forms of missingness take different types, with different impacts on the validity of conclusions from research: Missing completely at random, missing at random, and missing not at random. Missing data can be handled similarly as
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Samuelson and Spirer (1992) discussed how missing and/or distorted data about demographics, law enforcement, and health could be indicators of patterns of human rights violations. They gave several fairly well documented examples.
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In the comparison of two paired samples with missing data, a test statistic that uses all available data without the need for imputation is the partially overlapping samples t-test. This is valid under normality and assuming MCAR
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Missing data reduces the representativeness of the sample and can therefore distort inferences about the population. Generally speaking, there are three main approaches to handle missing data: (1)
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Finally, the estimands that emerge from these techniques are derived in closed form and do not require iterative procedures such as Expectation Maximization that are susceptible to local optima.
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Different model structures may yield different estimands and different procedures of estimation whenever consistent estimation is possible. The preceding estimand calls for first estimating
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Spatial and temporal Trend Analysis of Long Term rainfall records in data-poor catchments with missing data, a case study of Lower Shire floodplain in Malawi for the period 1953–2010
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Zarate LE, Nogueira BM, Santos TR, Song MA (2006). "Techniques for Missing Value Recovering in Imbalanced Databases: Application in a marketing database with massive missing data".
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In many cases model based techniques permit the model structure to undergo refutation tests. Any model which implies the independence between a partially observed variable
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Li, Tianjing; Hutfless, Susan; Scharfstein, Daniel O.; Daniels, Michael J.; Hogan, Joseph W.; Little, Roderick J.A.; Roy, Jason A.; Law, Andrew H.; Dickersin, Kay (2014).
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When data falls into MNAR category techniques are available for consistently estimating parameters when certain conditions hold in the model. For example, if
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Methods which take full account of all information available, without the distortion resulting from using imputed values as if they were actually observed:
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Graham J.W.; Olchowski A.E.; Gilreath T.D. (2007). "How Many Imputations Are Really Needed? Some Practical Clarifications of Multiple Imputation Theory".
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to missingness. An analysis is robust when we are confident that mild to moderate violations of the technique's key assumptions will produce little or no
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The conclusion is: The more data is missing (MNAR), the more biased are the estimations. We underestimate the intensity of depression in the population.
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In situations where missing values are likely to occur, the researcher is often advised on planning to use methods of data analysis methods that are
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Potthoff, R.F.; Tudor, G.E.; Pieper, K.S.; Hasselblad, V. (2006). "Can one assess whether missing data are missing at random in medical studies?".
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Mohan, K.; Van den Broeck, G.; Choi, A.; Pearl, J. (2014). "An Efficient Method for Bayesian Network Parameter Learning from Incomplete Data".
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implications in predictive fairness for machine learning models. Furthermore, established methods for dealing with missing data, such as
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Van den Broeck J, Cunningham SA, Eeckels R, Herbst K (2005), "Data cleaning: detecting, diagnosing, and editing data abnormalities",
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Messner SF (1992). "Exploring the Consequences of Erratic Data Reporting for Cross-National Research on Homicide".
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Molenberghs, Geert; Fitzmaurice, Garrett; Kenward, Michael G.; Tsiatis, Anastasios; Verbeke, Geert, eds. (2015),
2190: 4225: 3437: 3244: 3133: 3091: 1984: 451: 3165: 645:{\displaystyle {\begin{aligned}P(X,Y)&=P(X|Y)P(Y)\\&=P(X|Y,R_{x}=0,R_{y}=0)P(Y|R_{y}=0)\end{aligned}}} 4468: 3427: 2330: 1038: 4019: 3968: 3953: 3943: 3812: 3684: 3651: 3477: 3432: 3262: 435:(Remark: These tests are necessary for variable-based MAR which is a slight variation of event-based MAR.) 4531: 4363: 4164: 4088: 3389: 3143: 2812: 2276: 2181: 4248: 4220: 4215: 3963: 3722: 3628: 3608: 3516: 3227: 3045: 2528: 2400: 1771: 3980: 3748: 3469: 3394: 3323: 3252: 3172: 3160: 3030: 3018: 3011: 2719: 2440: 1139:
Mohan, Karthika; Pearl, Judea; Tian, Jin (2013). "Graphical Models for Inference with Missing Data".
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is a method of constructing new data points within the range of a discrete set of known data points.
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Methods which involve reducing the data available to a dataset having no missing values include:
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van Ginkel, Joost R.; Linting, Marielle; Rippe, Ralph C. A.; van der Voort, Anja (2020-05-03).
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Jackson, James; Mitra, Robin; Hagenbuch, Niels; McGough, Sarah; Harbron, Chris (2023-07-05),
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Mohan, Karthika; Pearl, Judea (2014). "On the testability of models with missing data".
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Recoverability and Testability of Missing data: Introduction and Summary of Results
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Nursing Research: Generating and Assessing Evidence for Nursing Practice, 9th ed
4316: 4311: 2774: 2704: 2350: 2035: 1875: 1367: 1295: 2162: 1841: 1516: 1307: 1208:. Philadelphia, USA: Wolters Klower Health, Lippincott Williams & Wilkins. 4559: 4473: 4440: 4303: 4264: 4075: 4044: 3508: 3462: 3067: 2769: 2596: 2360: 2355: 2105: 1748: 1728: 1702: 1654: 1581: 1375: 251: 245: 216: 182:—where samples with invalid data are discarded from further analysis and (3) 76: 2155:
IEEE International Conference on Systems, Man and Cybernetics, 2006. SMC '06
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Reducing Survey Nonresponse: Lessons Learned from the European Social Survey
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techniques are not robust to missingness, and require to "fill in", or
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but that is usually an unrealistically strong assumption in practice.
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Presented at Causal Modeling and Machine Learning Workshop, ICML-2014
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too-small number of imputations can lead to a substantial loss of
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Hand, David J.; AdĂšr, Herman J.; Mellenbergh, Gideon J. (2008).
4400: 3381: 3355: 3335: 2586: 2377: 201:, or distortion in the conclusions drawn about the population. 2199:, A unified platform for missing values methods and workflows. 1909:
Mirkes, E.M.; Coats, T.J.; Levesley, J.; Gorban, A.N. (2016).
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denote the observed portions of their respective variables.
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Samuelson, Douglas A.; Spirer, Herbert F. (1992-12-31),
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Karvanen, Juha (2015). "Study design in causal models".
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Max-margin classification of data with absent features
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A Complete Characterisation of Structured Missingness
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Autoregressive conditional heteroskedasticity (ARCH)
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Advances in Neural Information Processing Systems 26
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can be submitted to the following refutation test:
1110: 424:should be independent on the missingness status of 3604: 989: 929: 902: 879:and the missingness indicator of another variable 864: 827: 782: 753: 713: 680: 644: 410:{\displaystyle X\perp \!\!\!\perp R_{y}|(R_{x},Z)} 409: 952: 951: 950: 366: 365: 364: 250:In the mathematical field of numerical analysis, 4557: 2186:London School of Hygiene & Tropical Medicine 2029: 2005: 1982:Acock AC (2005), "Working with missing values", 1668:Derrick, B; Russ, B; Toher, D; White, P (2017). 1468:; Billiet, J.; Koch, A.; Fitzgerald, R. (2010). 1342:"Learning from data with structured missingness" 1203: 990:{\displaystyle X\perp \!\!\!\perp R_{y}|R_{x}=0} 3690:Multivariate adaptive regression splines (MARS) 2041: 1293: 100: 1707:"Max-margin Classification of incomplete data" 1138: 466:is random. The estimand in this case will be: 2245: 2017: 1815:Modeling and Reasoning with Bayesian Networks 1674:Journal of Modern Applied Statistical Methods 1460: 1458: 462:can still be estimated if the missingness of 351:partially observed, the data should satisfy: 2020:Handling Missing Data in Ranked Set Sampling 2077: 2065: 1270: 2290: 2252: 2238: 1902: 1873: 1797: 1727:Chechik, Gal; Heitz, Geremy; Elidan, Gal; 1701:Chechik, Gal; Heitz, Geremy; Elidan, Gal; 1610: 1455: 1068: 2903: 2128: 2118: 1997: 1926: 1685: 1644: 1571: 1506: 1438: 1398: 1357: 1169: 1106: 1104: 1102: 1100: 794:is observed regardless of the status of 761:from complete data and multiplying it by 322: 148: 1981: 1812: 1764:"Partial Identification in Econometrics" 1737:The Journal of Machine Learning Research 1155: 1134: 1132: 129: 90: 2093: 1830:Statistical Methods in Medical Research 1800:Proceedings of AISTAT-2014, Forthcoming 1785:10.1146/annurev.economics.050708.143401 1199: 1197: 442:explains the reason for missingness in 170:Techniques of dealing with missing data 4558: 4216:Kaplan–Meier estimator (product limit) 2096:Semiparametric Theory and Missing Data 2084:Statistical Analysis with Missing Data 1874:Pearl, Judea; Mohan, Karthika (2013). 1277:Statistical Analysis with Missing Data 1221:"On Biostatistics and Clinical Trials" 1097: 58:Data often are missing in research in 4289: 3856: 3603: 2902: 2672: 2289: 2233: 1761: 1714:Neural Information Processing Systems 1334: 1332: 1149: 1129: 4526: 4226:Accelerated failure time (AFT) model 2184:, Department of Medical Statistics, 2056:Handbook of Missing Data Methodology 1218: 1194: 117: 4538: 3821:Analysis of variance (ANOVA, anova) 2673: 2157:. Vol. 3. pp. 2658–2664. 1661: 1613:Flexible imputation of missing data 1071:Journal of Quantitative Criminology 261: 107:missing completely at random (MCAR) 13: 3916:Cochran–Mantel–Haenszel statistics 2542:Pearson product-moment correlation 1975: 1329: 1158:Scandinavian Journal of Statistics 1024:Expectation–maximization algorithm 420:In words, the observed portion of 294:expectation-maximization algorithm 233:expectation-maximization algorithm 14: 4582: 2170: 2068:Missing Data Analysis in Practice 2018:Bouza-Herrera, Carlos N. (2013), 1915:Computers in Biology and Medicine 1552:Journal of Personality Assessment 4537: 4525: 4513: 4500: 4499: 4290: 2220:PROC MI and PROC MIANALYZE - SAS 2066:Raghunathan, Trivellore (2016), 1999:10.1111/j.1741-3737.2005.00191.x 1967:from the original on 2016-08-05. 1945:10.1016/j.compbiomed.2016.06.004 1419:Journal of Clinical Epidemiology 280: 239: 4175:Least-squares spectral analysis 2094:Tsiatis, Anastasios A. 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Cambridge University Press. 1564:10.1080/00223891.2018.1530680 1055: 1039:Inverse probability weighting 204: 3652:Coefficient of determination 3263:Uniformly most powerful test 2120:10.1371/journal.pmed.0020267 1633:Infant and Child Development 135:Missing not at random (MNAR) 101:Missing completely at random 7: 4221:Proportional hazards models 4165:Spectral density estimation 4147:Vector autoregression (VAR) 3581:Maximum posterior estimator 2813:Randomized controlled trial 2208: 1472:. Oxford: Wiley-Blackwell. 1346:Nature Machine Intelligence 1300:Human Rights and Statistics 1011: 307:Discriminative approaches: 154:‘structured missingness’. 10: 4587: 3981:Multivariate distributions 2401:Average absolute deviation 1772:Annual Review of Economics 1615:(2nd ed.). CRC Press. 1368:10.1038/s42256-022-00596-z 319:methods may also be used. 243: 208: 4495: 4449: 4386: 4339: 4302: 4298: 4285: 4257: 4239: 4206: 4197: 4155: 4102: 4063: 4012: 4003: 3969:Structural equation model 3924: 3881: 3877: 3852: 3811: 3777: 3731: 3698: 3660: 3627: 3623: 3599: 3539: 3448: 3367: 3331: 3322: 3305:Score/Lagrange multiplier 3290: 3243: 3188: 3114: 3105: 2915: 2911: 2898: 2857: 2831: 2783: 2738: 2720:Sample size determination 2685: 2681: 2668: 2572: 2527: 2501: 2483: 2439: 2391: 2311: 2302: 2298: 2285: 2267: 2163:10.1109/ICSMC.2006.385265 2030:Enders, Craig K. (2010), 2006:Allison, Paul D. 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(2018). 714:{\displaystyle R_{y}=0} 681:{\displaystyle R_{x}=0} 289:Generative approaches: 211:Imputation (statistics) 123:Missing at random (MAR) 4571:Statistical data types 4520:Mathematics portal 4341:Engineering statistics 4249:Nelson–Aalen estimator 3826:Analysis of covariance 3713:Ordinary least squares 3637:Pearson product-moment 3041:Statistical functional 2952:Empirical distribution 2785:Controlled experiments 2514:Frequency distribution 2292:Descriptive statistics 991: 931: 904: 866: 865:{\displaystyle P(Y|X)} 829: 828:{\displaystyle P(X|Y)} 784: 755: 754:{\displaystyle P(X|Y)} 715: 682: 646: 411: 343:is fully observed and 323:Model-based techniques 317:Partial identification 149:Structured Missingness 97: 4436:Population statistics 4378:System identification 4112:Autocorrelation (ACF) 4040:Exponential smoothing 3954:Discriminant analysis 3949:Canonical correlation 3813:Partition of variance 3675:Regression validation 3519:(Jonckheere–Terpstra) 3418:Likelihood-ratio test 3107:Frequentist inference 3019:Location–scale family 2940:Sampling distribution 2905:Statistical inference 2872:Cross-sectional study 2859:Observational studies 2818:Randomized experiment 2647:Stem-and-leaf display 2449:Central limit theorem 1145:. pp. 1277–1285. 992: 932: 930:{\displaystyle R_{x}} 905: 903:{\displaystyle R_{y}} 867: 830: 785: 756: 716: 683: 647: 412: 130:Missing not at random 94: 4359:Probabilistic design 3944:Principal components 3787:Exponential families 3739:Nonlinear regression 3718:General linear model 3680:Mixed effects models 3670:Errors and residuals 3647:Confounding variable 3549:Bayesian probability 3527:Van der Waerden test 3517:Ordered alternative 3282:Multiple comparisons 3161:Rao–Blackwellization 3124:Estimating equations 3080:Statistical distance 2798:Factorial experiment 2331:Arithmetic-Geometric 1762:Tamer, Elie (2010). 1495:Preventative Science 1008:models are applied. 941: 914: 887: 839: 802: 783:{\displaystyle P(Y)} 765: 728: 692: 659: 473: 355: 4431:Official statistics 4354:Methods engineering 4035:Seasonal adjustment 3803:Poisson regressions 3723:Bayesian regression 3662:Regression analysis 3642:Partial correlation 3614:Regression analysis 3213:Prediction interval 3208:Likelihood interval 3198:Confidence interval 3190:Interval estimation 3151:Unbiased estimators 2969:Model specification 2849:Up-and-down designs 2537:Partial correlation 2493:Index of dispersion 2411:Interquartile range 1937:2016arXiv160400627M 1219:Deng (2012-10-05). 16:Statistical concept 4451:Spatial statistics 4331:Medical statistics 4231:First hitting time 4185:Whittle likelihood 3836:Degrees of freedom 3831:Multivariate ANOVA 3764:Heteroscedasticity 3576:Bayesian estimator 3541:Bayesian inference 3390:Kolmogorov–Smirnov 3275:Randomization test 3245:Testing hypotheses 3218:Tolerance interval 3129:Maximum likelihood 3024:Exponential family 2957:Density estimation 2917:Statistical theory 2877:Natural experiment 2823:Scientific control 2740:Survey methodology 2426:Standard deviation 2072:Chapman & Hall 2060:Chapman & Hall 1180:10.1111/sjos.12110 1083:10.1007/bf01066742 1034:Indicator variable 987: 927: 910:), conditional on 900: 862: 825: 780: 751: 711: 678: 642: 640: 407: 300:maximum likelihood 273:/casewise deletion 98: 38:is stored for the 4553: 4552: 4491: 4490: 4487: 4486: 4426:National accounts 4396:Actuarial science 4388:Social statistics 4281: 4280: 4277: 4276: 4273: 4272: 4208:Survival function 4193: 4192: 4055:Granger causality 3896:Contingency table 3871:Survival analysis 3848: 3847: 3844: 3843: 3700:Linear regression 3595: 3594: 3591: 3590: 3566:Credible interval 3535: 3534: 3318: 3317: 3134:Method of moments 3003:Parametric family 2964:Statistical model 2894: 2893: 2890: 2889: 2808:Random assignment 2730:Statistical power 2664: 2663: 2660: 2659: 2509:Contingency table 2479: 2478: 2346:Generalized/power 1479:978-0-470-51669-0 1122:978-90-79418-01-5 1049:Matrix completion 298:full information 276:Pairwise deletion 271:Listwise deletion 226:statistical power 118:Missing at random 68:political science 4578: 4541: 4540: 4529: 4528: 4518: 4517: 4503: 4502: 4406:Crime statistics 4300: 4299: 4287: 4286: 4204: 4203: 4170:Fourier analysis 4157:Frequency domain 4137: 4084: 4050:Structural break 4010: 4009: 3959:Cluster analysis 3906:Log-linear model 3879: 3878: 3854: 3853: 3795: 3769:Homoscedasticity 3625: 3624: 3601: 3600: 3520: 3512: 3504: 3503:(Kruskal–Wallis) 3488: 3473: 3428:Cross validation 3413: 3395:Anderson–Darling 3342: 3329: 3328: 3300:Likelihood-ratio 3292:Parametric tests 3270:Permutation test 3253:1- & 2-tails 3144:Minimum distance 3116:Point estimation 3112: 3111: 3063:Optimal decision 3014: 2913: 2912: 2900: 2899: 2882:Quasi-experiment 2832:Adaptive designs 2683: 2682: 2670: 2669: 2547:Rank correlation 2309: 2308: 2300: 2299: 2287: 2286: 2254: 2247: 2240: 2231: 2230: 2166: 2149: 2132: 2122: 2099: 2090: 2086:(2nd ed.), 2080:Rubin, Donald B. 2074: 2062: 2050: 2038: 2026: 2014: 2002: 2001: 1969: 1968: 1930: 1906: 1900: 1899: 1891: 1885: 1884: 1882: 1871: 1862: 1861: 1825: 1819: 1818: 1810: 1804: 1803: 1795: 1789: 1788: 1768: 1759: 1753: 1752: 1724: 1718: 1717: 1711: 1698: 1692: 1691: 1689: 1665: 1659: 1658: 1648: 1646:10.1002/icd.2407 1623: 1617: 1616: 1608: 1602: 1601: 1575: 1543: 1537: 1536: 1510: 1490: 1484: 1483: 1462: 1453: 1452: 1442: 1410: 1404: 1403: 1402: 1386: 1380: 1379: 1361: 1336: 1327: 1326: 1325: 1324: 1291: 1285: 1283: 1279:(2nd ed.), 1273:Rubin, Donald B. 1268: 1262: 1261: 1259: 1258: 1243: 1237: 1236: 1234: 1232: 1227:on 15 March 2016 1223:. Archived from 1216: 1210: 1209: 1201: 1192: 1191: 1173: 1153: 1147: 1146: 1136: 1127: 1126: 1108: 1095: 1094: 1066: 996: 994: 993: 988: 980: 979: 970: 965: 964: 936: 934: 933: 928: 926: 925: 909: 907: 906: 901: 899: 898: 871: 869: 868: 863: 855: 834: 832: 831: 826: 818: 789: 787: 786: 781: 760: 758: 757: 752: 744: 720: 718: 717: 712: 704: 703: 687: 685: 684: 679: 671: 670: 651: 649: 648: 643: 641: 628: 627: 618: 595: 594: 576: 575: 560: 540: 518: 416: 414: 413: 408: 397: 396: 384: 379: 378: 262:Partial deletion 31:, occur when no 4586: 4585: 4581: 4580: 4579: 4577: 4576: 4575: 4556: 4555: 4554: 4549: 4512: 4483: 4445: 4382: 4368:quality control 4335: 4317:Clinical trials 4294: 4269: 4253: 4241:Hazard function 4235: 4189: 4151: 4135: 4098: 4094:Breusch–Godfrey 4082: 4059: 3999: 3974:Factor analysis 3920: 3901:Graphical model 3873: 3840: 3807: 3793: 3773: 3727: 3694: 3656: 3619: 3618: 3587: 3531: 3518: 3510: 3502: 3486: 3471: 3450:Rank statistics 3444: 3423:Model selection 3411: 3369:Goodness of fit 3363: 3340: 3314: 3286: 3239: 3184: 3173:Median unbiased 3101: 3012: 2945:Order statistic 2907: 2886: 2853: 2827: 2779: 2734: 2677: 2675:Data collection 2656: 2568: 2523: 2497: 2475: 2435: 2387: 2304:Continuous data 2294: 2281: 2263: 2258: 2211: 2178: 2173: 2012:SAGE Publishing 1978: 1976:Further reading 1973: 1972: 1907: 1903: 1892: 1888: 1880: 1872: 1865: 1826: 1822: 1811: 1807: 1796: 1792: 1766: 1760: 1756: 1725: 1721: 1709: 1699: 1695: 1666: 1662: 1624: 1620: 1609: 1605: 1544: 1540: 1508:10.1.1.595.7125 1491: 1487: 1480: 1463: 1456: 1411: 1407: 1387: 1383: 1337: 1330: 1322: 1320: 1318: 1292: 1288: 1269: 1265: 1256: 1254: 1245: 1244: 1240: 1230: 1228: 1217: 1213: 1202: 1195: 1154: 1150: 1137: 1130: 1123: 1109: 1098: 1067: 1063: 1058: 1053: 1044:Latent variable 1014: 975: 971: 966: 960: 956: 942: 939: 938: 921: 917: 915: 912: 911: 894: 890: 888: 885: 884: 851: 840: 837: 836: 814: 803: 800: 799: 766: 763: 762: 740: 729: 726: 725: 699: 695: 693: 690: 689: 666: 662: 660: 657: 656: 639: 638: 623: 619: 614: 590: 586: 571: 567: 556: 538: 537: 514: 498: 476: 474: 471: 470: 392: 388: 380: 374: 370: 356: 353: 352: 325: 283: 264: 248: 242: 213: 207: 172: 151: 132: 120: 103: 85: 17: 12: 11: 5: 4584: 4574: 4573: 4568: 4551: 4550: 4548: 4547: 4535: 4523: 4509: 4496: 4493: 4492: 4489: 4488: 4485: 4484: 4482: 4481: 4476: 4471: 4466: 4461: 4455: 4453: 4447: 4446: 4444: 4443: 4438: 4433: 4428: 4423: 4418: 4413: 4408: 4403: 4398: 4392: 4390: 4384: 4383: 4381: 4380: 4375: 4370: 4361: 4356: 4351: 4345: 4343: 4337: 4336: 4334: 4333: 4328: 4323: 4314: 4312:Bioinformatics 4308: 4306: 4296: 4295: 4283: 4282: 4279: 4278: 4275: 4274: 4271: 4270: 4268: 4267: 4261: 4259: 4255: 4254: 4252: 4251: 4245: 4243: 4237: 4236: 4234: 4233: 4228: 4223: 4218: 4212: 4210: 4201: 4195: 4194: 4191: 4190: 4188: 4187: 4182: 4177: 4172: 4167: 4161: 4159: 4153: 4152: 4150: 4149: 4144: 4139: 4131: 4126: 4121: 4120: 4119: 4117:partial (PACF) 4108: 4106: 4100: 4099: 4097: 4096: 4091: 4086: 4078: 4073: 4067: 4065: 4064:Specific tests 4061: 4060: 4058: 4057: 4052: 4047: 4042: 4037: 4032: 4027: 4022: 4016: 4014: 4007: 4001: 4000: 3998: 3997: 3996: 3995: 3994: 3993: 3978: 3977: 3976: 3966: 3964:Classification 3961: 3956: 3951: 3946: 3941: 3936: 3930: 3928: 3922: 3921: 3919: 3918: 3913: 3911:McNemar's test 3908: 3903: 3898: 3893: 3887: 3885: 3875: 3874: 3850: 3849: 3846: 3845: 3842: 3841: 3839: 3838: 3833: 3828: 3823: 3817: 3815: 3809: 3808: 3806: 3805: 3789: 3783: 3781: 3775: 3774: 3772: 3771: 3766: 3761: 3756: 3751: 3749:Semiparametric 3746: 3741: 3735: 3733: 3729: 3728: 3726: 3725: 3720: 3715: 3710: 3704: 3702: 3696: 3695: 3693: 3692: 3687: 3682: 3677: 3672: 3666: 3664: 3658: 3657: 3655: 3654: 3649: 3644: 3639: 3633: 3631: 3621: 3620: 3617: 3616: 3611: 3605: 3597: 3596: 3593: 3592: 3589: 3588: 3586: 3585: 3584: 3583: 3573: 3568: 3563: 3562: 3561: 3556: 3545: 3543: 3537: 3536: 3533: 3532: 3530: 3529: 3524: 3523: 3522: 3514: 3506: 3490: 3487:(Mann–Whitney) 3482: 3481: 3480: 3467: 3466: 3465: 3454: 3452: 3446: 3445: 3443: 3442: 3441: 3440: 3435: 3430: 3420: 3415: 3412:(Shapiro–Wilk) 3407: 3402: 3397: 3392: 3387: 3379: 3373: 3371: 3365: 3364: 3362: 3361: 3353: 3344: 3332: 3326: 3324:Specific tests 3320: 3319: 3316: 3315: 3313: 3312: 3307: 3302: 3296: 3294: 3288: 3287: 3285: 3284: 3279: 3278: 3277: 3267: 3266: 3265: 3255: 3249: 3247: 3241: 3240: 3238: 3237: 3236: 3235: 3230: 3220: 3215: 3210: 3205: 3200: 3194: 3192: 3186: 3185: 3183: 3182: 3177: 3176: 3175: 3170: 3169: 3168: 3163: 3148: 3147: 3146: 3141: 3136: 3131: 3120: 3118: 3109: 3103: 3102: 3100: 3099: 3094: 3089: 3088: 3087: 3077: 3072: 3071: 3070: 3060: 3059: 3058: 3053: 3048: 3038: 3033: 3028: 3027: 3026: 3021: 3016: 3000: 2999: 2998: 2993: 2988: 2978: 2977: 2976: 2971: 2961: 2960: 2959: 2949: 2948: 2947: 2937: 2932: 2927: 2921: 2919: 2909: 2908: 2896: 2895: 2892: 2891: 2888: 2887: 2885: 2884: 2879: 2874: 2869: 2863: 2861: 2855: 2854: 2852: 2851: 2846: 2841: 2835: 2833: 2829: 2828: 2826: 2825: 2820: 2815: 2810: 2805: 2800: 2795: 2789: 2787: 2781: 2780: 2778: 2777: 2775:Standard error 2772: 2767: 2762: 2761: 2760: 2755: 2744: 2742: 2736: 2735: 2733: 2732: 2727: 2722: 2717: 2712: 2707: 2705:Optimal design 2702: 2697: 2691: 2689: 2679: 2678: 2666: 2665: 2662: 2661: 2658: 2657: 2655: 2654: 2649: 2644: 2639: 2634: 2629: 2624: 2619: 2614: 2609: 2604: 2599: 2594: 2589: 2584: 2578: 2576: 2570: 2569: 2567: 2566: 2561: 2560: 2559: 2554: 2544: 2539: 2533: 2531: 2525: 2524: 2522: 2521: 2516: 2511: 2505: 2503: 2502:Summary tables 2499: 2498: 2496: 2495: 2489: 2487: 2481: 2480: 2477: 2476: 2474: 2473: 2472: 2471: 2466: 2461: 2451: 2445: 2443: 2437: 2436: 2434: 2433: 2428: 2423: 2418: 2413: 2408: 2403: 2397: 2395: 2389: 2388: 2386: 2385: 2380: 2375: 2374: 2373: 2368: 2363: 2358: 2353: 2348: 2343: 2338: 2336:Contraharmonic 2333: 2328: 2317: 2315: 2306: 2296: 2295: 2283: 2282: 2280: 2279: 2274: 2268: 2265: 2264: 2257: 2256: 2249: 2242: 2234: 2228: 2227: 2222: 2217: 2210: 2207: 2206: 2205: 2200: 2194: 2188: 2177: 2174: 2172: 2171:External links 2169: 2168: 2167: 2150: 2100: 2091: 2075: 2063: 2051: 2039: 2036:Guilford Press 2027: 2015: 2003: 1992:(4): 1012–28, 1977: 1974: 1971: 1970: 1901: 1886: 1863: 1836:(3): 213–234. 1820: 1805: 1790: 1779:(1): 167–195. 1754: 1729:Abbeel, Pieter 1719: 1703:Abbeel, Pieter 1693: 1680:(1): 137–157. 1660: 1618: 1603: 1558:(3): 297–308. 1538: 1501:(3): 208–213. 1485: 1478: 1454: 1405: 1381: 1328: 1316: 1286: 1263: 1238: 1211: 1193: 1164:(2): 361–377. 1148: 1128: 1121: 1096: 1077:(2): 155–173. 1060: 1059: 1057: 1054: 1052: 1051: 1046: 1041: 1036: 1031: 1026: 1021: 1015: 1013: 1010: 986: 983: 978: 974: 969: 963: 959: 955: 949: 946: 924: 920: 897: 893: 861: 858: 854: 850: 847: 844: 835:as opposed to 824: 821: 817: 813: 810: 807: 779: 776: 773: 770: 750: 747: 743: 739: 736: 733: 710: 707: 702: 698: 677: 674: 669: 665: 653: 652: 637: 634: 631: 626: 622: 617: 613: 610: 607: 604: 601: 598: 593: 589: 585: 582: 579: 574: 570: 566: 563: 559: 555: 552: 549: 546: 543: 541: 539: 536: 533: 530: 527: 524: 521: 517: 513: 510: 507: 504: 501: 499: 497: 494: 491: 488: 485: 482: 479: 478: 406: 403: 400: 395: 391: 387: 383: 377: 373: 369: 363: 360: 324: 321: 314: 313: 312: 311: 305: 304: 303: 296: 282: 279: 278: 277: 274: 263: 260: 244:Main article: 241: 238: 209:Main article: 206: 203: 171: 168: 150: 147: 131: 128: 119: 116: 102: 99: 84: 81: 29:missing values 15: 9: 6: 4: 3: 2: 4583: 4572: 4569: 4567: 4564: 4563: 4561: 4546: 4545: 4536: 4534: 4533: 4524: 4522: 4521: 4516: 4510: 4508: 4507: 4498: 4497: 4494: 4480: 4477: 4475: 4474:Geostatistics 4472: 4470: 4467: 4465: 4462: 4460: 4457: 4456: 4454: 4452: 4448: 4442: 4441:Psychometrics 4439: 4437: 4434: 4432: 4429: 4427: 4424: 4422: 4419: 4417: 4414: 4412: 4409: 4407: 4404: 4402: 4399: 4397: 4394: 4393: 4391: 4389: 4385: 4379: 4376: 4374: 4371: 4369: 4365: 4362: 4360: 4357: 4355: 4352: 4350: 4347: 4346: 4344: 4342: 4338: 4332: 4329: 4327: 4324: 4322: 4318: 4315: 4313: 4310: 4309: 4307: 4305: 4304:Biostatistics 4301: 4297: 4293: 4288: 4284: 4266: 4265:Log-rank test 4263: 4262: 4260: 4256: 4250: 4247: 4246: 4244: 4242: 4238: 4232: 4229: 4227: 4224: 4222: 4219: 4217: 4214: 4213: 4211: 4209: 4205: 4202: 4200: 4196: 4186: 4183: 4181: 4178: 4176: 4173: 4171: 4168: 4166: 4163: 4162: 4160: 4158: 4154: 4148: 4145: 4143: 4140: 4138: 4136:(Box–Jenkins) 4132: 4130: 4127: 4125: 4122: 4118: 4115: 4114: 4113: 4110: 4109: 4107: 4105: 4101: 4095: 4092: 4090: 4089:Durbin–Watson 4087: 4085: 4079: 4077: 4074: 4072: 4071:Dickey–Fuller 4069: 4068: 4066: 4062: 4056: 4053: 4051: 4048: 4046: 4045:Cointegration 4043: 4041: 4038: 4036: 4033: 4031: 4028: 4026: 4023: 4021: 4020:Decomposition 4018: 4017: 4015: 4011: 4008: 4006: 4002: 3992: 3989: 3988: 3987: 3984: 3983: 3982: 3979: 3975: 3972: 3971: 3970: 3967: 3965: 3962: 3960: 3957: 3955: 3952: 3950: 3947: 3945: 3942: 3940: 3937: 3935: 3932: 3931: 3929: 3927: 3923: 3917: 3914: 3912: 3909: 3907: 3904: 3902: 3899: 3897: 3894: 3892: 3891:Cohen's kappa 3889: 3888: 3886: 3884: 3880: 3876: 3872: 3868: 3864: 3860: 3855: 3851: 3837: 3834: 3832: 3829: 3827: 3824: 3822: 3819: 3818: 3816: 3814: 3810: 3804: 3800: 3796: 3790: 3788: 3785: 3784: 3782: 3780: 3776: 3770: 3767: 3765: 3762: 3760: 3757: 3755: 3752: 3750: 3747: 3745: 3744:Nonparametric 3742: 3740: 3737: 3736: 3734: 3730: 3724: 3721: 3719: 3716: 3714: 3711: 3709: 3706: 3705: 3703: 3701: 3697: 3691: 3688: 3686: 3683: 3681: 3678: 3676: 3673: 3671: 3668: 3667: 3665: 3663: 3659: 3653: 3650: 3648: 3645: 3643: 3640: 3638: 3635: 3634: 3632: 3630: 3626: 3622: 3615: 3612: 3610: 3607: 3606: 3602: 3598: 3582: 3579: 3578: 3577: 3574: 3572: 3569: 3567: 3564: 3560: 3557: 3555: 3552: 3551: 3550: 3547: 3546: 3544: 3542: 3538: 3528: 3525: 3521: 3515: 3513: 3507: 3505: 3499: 3498: 3497: 3494: 3493:Nonparametric 3491: 3489: 3483: 3479: 3476: 3475: 3474: 3468: 3464: 3463:Sample median 3461: 3460: 3459: 3456: 3455: 3453: 3451: 3447: 3439: 3436: 3434: 3431: 3429: 3426: 3425: 3424: 3421: 3419: 3416: 3414: 3408: 3406: 3403: 3401: 3398: 3396: 3393: 3391: 3388: 3386: 3384: 3380: 3378: 3375: 3374: 3372: 3370: 3366: 3360: 3358: 3354: 3352: 3350: 3345: 3343: 3338: 3334: 3333: 3330: 3327: 3325: 3321: 3311: 3308: 3306: 3303: 3301: 3298: 3297: 3295: 3293: 3289: 3283: 3280: 3276: 3273: 3272: 3271: 3268: 3264: 3261: 3260: 3259: 3256: 3254: 3251: 3250: 3248: 3246: 3242: 3234: 3231: 3229: 3226: 3225: 3224: 3221: 3219: 3216: 3214: 3211: 3209: 3206: 3204: 3201: 3199: 3196: 3195: 3193: 3191: 3187: 3181: 3178: 3174: 3171: 3167: 3164: 3162: 3159: 3158: 3157: 3154: 3153: 3152: 3149: 3145: 3142: 3140: 3137: 3135: 3132: 3130: 3127: 3126: 3125: 3122: 3121: 3119: 3117: 3113: 3110: 3108: 3104: 3098: 3095: 3093: 3090: 3086: 3083: 3082: 3081: 3078: 3076: 3073: 3069: 3068:loss function 3066: 3065: 3064: 3061: 3057: 3054: 3052: 3049: 3047: 3044: 3043: 3042: 3039: 3037: 3034: 3032: 3029: 3025: 3022: 3020: 3017: 3015: 3009: 3006: 3005: 3004: 3001: 2997: 2994: 2992: 2989: 2987: 2984: 2983: 2982: 2979: 2975: 2972: 2970: 2967: 2966: 2965: 2962: 2958: 2955: 2954: 2953: 2950: 2946: 2943: 2942: 2941: 2938: 2936: 2933: 2931: 2928: 2926: 2923: 2922: 2920: 2918: 2914: 2910: 2906: 2901: 2897: 2883: 2880: 2878: 2875: 2873: 2870: 2868: 2865: 2864: 2862: 2860: 2856: 2850: 2847: 2845: 2842: 2840: 2837: 2836: 2834: 2830: 2824: 2821: 2819: 2816: 2814: 2811: 2809: 2806: 2804: 2801: 2799: 2796: 2794: 2791: 2790: 2788: 2786: 2782: 2776: 2773: 2771: 2770:Questionnaire 2768: 2766: 2763: 2759: 2756: 2754: 2751: 2750: 2749: 2746: 2745: 2743: 2741: 2737: 2731: 2728: 2726: 2723: 2721: 2718: 2716: 2713: 2711: 2708: 2706: 2703: 2701: 2698: 2696: 2693: 2692: 2690: 2688: 2684: 2680: 2676: 2671: 2667: 2653: 2650: 2648: 2645: 2643: 2640: 2638: 2635: 2633: 2630: 2628: 2625: 2623: 2620: 2618: 2615: 2613: 2610: 2608: 2605: 2603: 2600: 2598: 2597:Control chart 2595: 2593: 2590: 2588: 2585: 2583: 2580: 2579: 2577: 2575: 2571: 2565: 2562: 2558: 2555: 2553: 2550: 2549: 2548: 2545: 2543: 2540: 2538: 2535: 2534: 2532: 2530: 2526: 2520: 2517: 2515: 2512: 2510: 2507: 2506: 2504: 2500: 2494: 2491: 2490: 2488: 2486: 2482: 2470: 2467: 2465: 2462: 2460: 2457: 2456: 2455: 2452: 2450: 2447: 2446: 2444: 2442: 2438: 2432: 2429: 2427: 2424: 2422: 2419: 2417: 2414: 2412: 2409: 2407: 2404: 2402: 2399: 2398: 2396: 2394: 2390: 2384: 2381: 2379: 2376: 2372: 2369: 2367: 2364: 2362: 2359: 2357: 2354: 2352: 2349: 2347: 2344: 2342: 2339: 2337: 2334: 2332: 2329: 2327: 2324: 2323: 2322: 2319: 2318: 2316: 2314: 2310: 2307: 2305: 2301: 2297: 2293: 2288: 2284: 2278: 2275: 2273: 2270: 2269: 2266: 2262: 2255: 2250: 2248: 2243: 2241: 2236: 2235: 2232: 2226: 2223: 2221: 2218: 2216: 2213: 2212: 2204: 2201: 2198: 2197:R-miss-tastic 2195: 2192: 2189: 2187: 2183: 2180: 2179: 2164: 2160: 2156: 2151: 2148: 2144: 2140: 2136: 2131: 2126: 2121: 2116: 2112: 2108: 2107: 2106:PLOS Medicine 2101: 2097: 2092: 2089: 2085: 2081: 2076: 2073: 2069: 2064: 2061: 2057: 2052: 2049: 2045: 2040: 2037: 2033: 2028: 2025: 2021: 2016: 2013: 2009: 2004: 2000: 1995: 1991: 1987: 1986: 1980: 1979: 1966: 1962: 1958: 1954: 1950: 1946: 1942: 1938: 1934: 1929: 1924: 1920: 1916: 1912: 1905: 1897: 1890: 1879: 1878: 1870: 1868: 1859: 1855: 1851: 1847: 1843: 1839: 1835: 1831: 1824: 1816: 1809: 1801: 1794: 1786: 1782: 1778: 1774: 1773: 1765: 1758: 1750: 1746: 1742: 1738: 1734: 1730: 1723: 1715: 1708: 1704: 1697: 1688: 1683: 1679: 1675: 1671: 1664: 1656: 1652: 1647: 1642: 1638: 1634: 1630: 1622: 1614: 1607: 1599: 1595: 1591: 1587: 1583: 1579: 1574: 1569: 1565: 1561: 1557: 1553: 1549: 1542: 1534: 1530: 1526: 1522: 1518: 1514: 1509: 1504: 1500: 1496: 1489: 1481: 1475: 1471: 1467: 1461: 1459: 1450: 1446: 1441: 1436: 1432: 1428: 1424: 1420: 1416: 1409: 1401: 1396: 1392: 1385: 1377: 1373: 1369: 1365: 1360: 1355: 1351: 1347: 1343: 1335: 1333: 1319: 1317:9781512802863 1313: 1309: 1305: 1301: 1297: 1290: 1282: 1278: 1274: 1267: 1252: 1248: 1242: 1226: 1222: 1215: 1207: 1200: 1198: 1189: 1185: 1181: 1177: 1172: 1167: 1163: 1159: 1152: 1144: 1143: 1135: 1133: 1124: 1118: 1114: 1107: 1105: 1103: 1101: 1092: 1088: 1084: 1080: 1076: 1072: 1065: 1061: 1050: 1047: 1045: 1042: 1040: 1037: 1035: 1032: 1030: 1027: 1025: 1022: 1020: 1017: 1016: 1009: 1007: 1001: 998: 984: 981: 976: 972: 961: 957: 953: 947: 944: 922: 918: 895: 891: 882: 878: 873: 856: 848: 842: 819: 811: 805: 797: 793: 774: 768: 745: 737: 731: 722: 708: 705: 700: 696: 675: 672: 667: 663: 632: 629: 624: 620: 611: 605: 599: 596: 591: 587: 583: 580: 577: 572: 568: 564: 561: 553: 547: 544: 542: 531: 525: 519: 511: 505: 502: 500: 492: 489: 486: 480: 469: 468: 467: 465: 461: 457: 453: 449: 445: 441: 436: 433: 431: 427: 423: 418: 401: 398: 393: 389: 375: 371: 367: 361: 358: 350: 346: 342: 338: 334: 329: 320: 318: 309: 308: 306: 301: 297: 295: 291: 290: 288: 287: 286: 281:Full analysis 275: 272: 269: 268: 267: 259: 255: 253: 252:interpolation 247: 246:Interpolation 240:Interpolation 237: 234: 229: 227: 222: 218: 217:data analysis 212: 202: 200: 196: 191: 187: 185: 181: 177: 167: 165: 159: 155: 146: 142: 140: 136: 127: 124: 115: 111: 108: 93: 89: 80: 78: 77:censored data 72: 69: 65: 61: 56: 53: 47: 45: 41: 37: 34: 30: 26: 22: 4566:Missing data 4542: 4530: 4511: 4504: 4416:Econometrics 4366: / 4349:Chemometrics 4326:Epidemiology 4319: / 4292:Applications 4134:ARIMA model 4081:Q-statistic 4030:Stationarity 3926:Multivariate 3869: / 3865: / 3863:Multivariate 3861: / 3801: / 3797: / 3571:Bayes factor 3470:Signed rank 3382: 3356: 3348: 3336: 3031:Completeness 2867:Cohort study 2765:Opinion poll 2700:Missing data 2699: 2687:Study design 2642:Scatter plot 2564:Scatter plot 2557:Spearman's ρ 2519:Grouped data 2182:Missing Data 2154: 2113:(10): e267, 2110: 2104: 2095: 2083: 2067: 2055: 2044:Missing Data 2043: 2031: 2019: 2008:Missing Data 2007: 1989: 1983: 1918: 1914: 1904: 1895: 1889: 1876: 1833: 1829: 1823: 1814: 1808: 1799: 1793: 1776: 1770: 1757: 1740: 1736: 1722: 1713: 1696: 1677: 1673: 1663: 1636: 1632: 1621: 1612: 1606: 1555: 1551: 1541: 1498: 1494: 1488: 1469: 1425:(1): 15–32. 1422: 1418: 1408: 1390: 1384: 1352:(1): 13–23. 1349: 1345: 1321:, retrieved 1299: 1289: 1276: 1266: 1255:. Retrieved 1241: 1229:. Retrieved 1225:the original 1214: 1205: 1161: 1157: 1151: 1141: 1112: 1074: 1070: 1064: 1006:Markov chain 1002: 999: 880: 876: 874: 795: 791: 723: 654: 463: 459: 455: 447: 443: 439: 437: 434: 429: 425: 421: 419: 348: 344: 340: 336: 332: 330: 326: 315: 284: 265: 256: 249: 230: 214: 192: 188: 183: 179: 175: 173: 160: 156: 152: 143: 138: 134: 133: 122: 121: 112: 106: 104: 86: 73: 57: 48: 28: 25:missing data 24: 18: 4544:WikiProject 4459:Cartography 4421:Jurimetrics 4373:Reliability 4104:Time domain 4083:(Ljung–Box) 4005:Time-series 3883:Categorical 3867:Time-series 3859:Categorical 3794:(Bernoulli) 3629:Correlation 3609:Correlation 3405:Jarque–Bera 3377:Chi-squared 3139:M-estimator 3092:Asymptotics 3036:Sufficiency 2803:Interaction 2715:Replication 2695:Effect size 2652:Violin plot 2632:Radar chart 2612:Forest plot 2602:Correlogram 2552:Kendall's τ 1921:: 203–216. 1573:1887/138825 44:observation 4560:Categories 4411:Demography 4129:ARMA model 3934:Regression 3511:(Friedman) 3472:(Wilcoxon) 3410:Normality 3400:Lilliefors 3347:Student's 3223:Resampling 3097:Robustness 3085:divergence 3075:Efficiency 3013:(monotone) 3008:Likelihood 2925:Population 2758:Stratified 2710:Population 2529:Dependence 2485:Count data 2416:Percentile 2393:Dispersion 2326:Arithmetic 2261:Statistics 2176:Background 2098:, Springer 1928:1604.00627 1716:: 233–240. 1400:2307.02650 1359:2304.01429 1323:2022-08-18 1257:2015-08-01 1056:References 1029:Imputation 302:estimation 205:Imputation 176:Imputation 164:imputation 21:statistics 3792:Logistic 3559:posterior 3485:Rank sum 3233:Jackknife 3228:Bootstrap 3046:Bootstrap 2981:Parameter 2930:Statistic 2725:Statistic 2637:Run chart 2622:Pie chart 2617:Histogram 2607:Fan chart 2582:Bar chart 2464:L-moments 2351:Geometric 1749:1532-4435 1655:1522-7227 1582:0022-3891 1503:CiteSeerX 1466:Stoop, I. 1376:2522-5839 1171:1211.2958 1091:133325281 1019:Censoring 954:⊥ 948:⊥ 368:⊥ 362:⊥ 64:sociology 60:economics 52:Attrition 4506:Category 4199:Survival 4076:Johansen 3799:Binomial 3754:Isotonic 3341:(normal) 2986:location 2793:Blocking 2748:Sampling 2627:Q–Q plot 2592:Box plot 2574:Graphics 2469:Skewness 2459:Kurtosis 2431:Variance 2361:Heronian 2356:Harmonic 2209:Software 2139:16138788 2082:(2002), 2048:Springer 2024:Springer 1965:Archived 1953:27318570 1858:12882831 1850:16768297 1743:: 1–21. 1598:58580667 1590:30657714 1533:24566076 1525:17549635 1449:24262770 1275:(2002), 1251:Archived 1188:53642701 1012:See also 184:analysis 180:omission 40:variable 4532:Commons 4479:Kriging 4364:Process 4321:studies 4180:Wavelet 4013:General 3180:Plug-in 2974:L space 2753:Cluster 2454:Moments 2272:Outline 2147:5667073 2130:1198040 1961:5874067 1933:Bibcode 1440:4631258 139:because 4401:Census 3991:Normal 3939:Manova 3759:Robust 3509:2-way 3501:1-way 3339:-test 3010:  2587:Biplot 2378:Median 2371:Lehmer 2313:Center 2145:  2137:  2127:  1959:  1951:  1856:  1848:  1747:  1653:  1596:  1588:  1580:  1531:  1523:  1505:  1476:  1447:  1437:  1374:  1314:  1247:"Home" 1231:13 May 1186:  1119:  1089:  883:(i.e. 655:where 339:where 335:, and 221:impute 195:robust 66:, and 42:in an 4025:Trend 3554:prior 3496:anova 3385:-test 3359:-test 3351:-test 3258:Power 3203:Pivot 2996:shape 2991:scale 2441:Shape 2421:Range 2366:Heinz 2341:Cubic 2277:Index 2215:Mplus 2143:S2CID 2088:Wiley 1957:S2CID 1923:arXiv 1881:(PDF) 1854:S2CID 1767:(PDF) 1710:(PDF) 1594:S2CID 1529:S2CID 1395:arXiv 1354:arXiv 1281:Wiley 1184:S2CID 1166:arXiv 1087:S2CID 215:Some 83:Types 36:value 27:, or 4258:Test 3458:Sign 3310:Wald 2383:Mode 2321:Mean 2225:SPSS 2135:PMID 1949:PMID 1846:PMID 1745:ISSN 1651:ISSN 1586:PMID 1578:ISSN 1521:PMID 1474:ISBN 1445:PMID 1372:ISSN 1312:ISBN 1233:2016 1117:ISBN 688:and 458:and 446:and 347:and 292:The 231:The 199:bias 33:data 3438:BIC 3433:AIC 2159:doi 2125:PMC 2115:doi 1994:doi 1941:doi 1838:doi 1781:doi 1682:doi 1641:doi 1568:hdl 1560:doi 1556:102 1513:doi 1435:PMC 1427:doi 1364:doi 1304:doi 1176:doi 1079:doi 454:of 333:X,Y 19:In 4562:: 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919:R 896:y 892:R 881:Y 877:X 860:) 857:X 853:| 849:Y 846:( 843:P 823:) 820:Y 816:| 812:X 809:( 806:P 796:X 792:Y 778:) 775:Y 772:( 769:P 749:) 746:Y 742:| 738:X 735:( 732:P 709:0 706:= 701:y 697:R 676:0 673:= 668:x 664:R 636:) 633:0 630:= 625:y 621:R 616:| 612:Y 609:( 606:P 603:) 600:0 597:= 592:y 588:R 584:, 581:0 578:= 573:x 569:R 565:, 562:Y 558:| 554:X 551:( 548:P 545:= 535:) 532:Y 529:( 526:P 523:) 520:Y 516:| 512:X 509:( 506:P 503:= 496:) 493:Y 490:, 487:X 484:( 481:P 464:Y 460:Y 456:X 448:Y 444:X 440:Y 430:Z 422:X 405:) 402:Z 399:, 394:x 390:R 386:( 382:| 376:y 372:R 359:X 349:Y 345:X 341:Z 337:Z

Index

statistics
data
value
variable
observation
Attrition
economics
sociology
political science
censored data

imputation
robust
bias
Imputation (statistics)
data analysis
impute
statistical power
expectation-maximization algorithm
Interpolation
interpolation
Listwise deletion
expectation-maximization algorithm
maximum likelihood
Partial identification
joint probability distribution
Markov chain
Censoring
Expectation–maximization algorithm
Imputation

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