85 Essential data checking tests 2011-06-07T08:19:22.500

82 What is the best way to identify outliers in multivariate data? 2010-07-20T05:02:33.793

79 Interpreting plot.lm() 2013-05-04T21:34:13.147

77 Why haven't robust (and resistant) statistics replaced classical techniques? 2010-08-03T07:49:34.003

72 Simple algorithm for online outlier detection of a generic time series 2010-08-02T20:37:27.650

63 How should outliers be dealt with in linear regression analysis? 2010-07-19T23:39:49.730

58 What do you call an average that does not include outliers? 2009-02-02T14:21:12.103

44 Fast linear regression robust to outliers 2012-12-19T10:47:00.917

40 Rigorous definition of an outlier? 2011-02-13T15:07:40.937

29 Replacing outliers with mean 2013-11-29T14:08:36.170

29 Is it OK to remove outliers from data? 2016-03-08T12:54:34.503

27 Detecting Outliers in Time Series (LS/AO/TC) using tsoutliers package in R. How to represent outliers in equation format? 2014-06-26T15:43:23.417

25 Detecting outliers using standard deviations 2012-09-26T02:28:06.073

24 Application of wavelets to time-series-based anomaly detection algorithms 2010-07-28T21:13:23.387

23 In what order should you do linear regression diagnostics? 2012-07-19T07:26:16.030

23 How are Random Forests not sensitive to outliers? 2015-12-17T06:23:21.480

22 Whether to delete cases that are flagged as outliers by statistical software when performing multiple regression? 2011-09-11T07:10:08.053

21 Why isn't RANSAC most widely used in statistics? 2010-07-21T14:30:42.197

21 Link Anomaly Detection in Temporal Network 2013-05-01T19:56:49.093

19 Distribution of an observation-level Mahalanobis distance 2012-01-03T15:13:32.413

19 Detecting outliers in count data 2013-04-17T20:11:54.393

19 Bootstrapping - do I need to remove outliers first? 2013-10-08T14:28:42.660

18 How to assess skewness from a boxplot? 2014-05-06T04:49:32.460

17 Can data cleaning worsen the results of statistical analysis? 2011-03-22T07:56:30.263

17 How to present box plot with an extreme outlier? 2014-09-08T20:03:39.193

17 Outlier Detection on skewed Distributions 2014-12-16T05:40:49.793

14 Robust outlier detection in financial timeseries 2010-08-04T10:02:35.090

14 Correcting for outliers in a running average 2009-04-12T07:24:17.007

14 Precise meaning of and comparison between influential point, high leverage point, and outlier? 2013-07-29T14:49:48.677

14 What is the basis for the Box and Whisker Plot definition of an outlier? 2017-02-02T20:35:27.663

14 Is it cheating to drop the outliers based on the boxplot of Mean Absolute Error to improve a regression model 2017-02-21T18:25:03.820

13 Is there a simple way of detecting outliers? 2012-09-23T23:28:24.277

13 Estimating parameters of a normal distribution: median instead of mean? 2013-01-30T10:05:43.053

13 Understanding the confidence band from a polynomial regression 2014-01-17T14:53:18.417

13 Can we use leave one out mean and standard deviation to reveal the outliers? 2014-10-22T15:34:57.277

13 How to do forecasting with detection of outliers in R? - Time series analysis procedure and Method 2015-08-31T10:02:47.473

12 Separating two populations from the sample 2010-07-28T13:53:18.503

12 Anomaly Detection with Dummy Features (and other Discrete/Categorical Features) 2013-06-19T06:06:02.833

12 using neighbor information in imputing data or find off-data (in R) 2014-05-28T02:55:01.813

12 Good form to remove outliers? 2014-08-28T06:31:03.520

12 Robust PCA vs. robust Mahalanobis distance for outlier detection 2017-10-18T17:52:53.260

11 Finding the average GPS point 2010-10-19T08:10:54.190

11 Crash course in robust mean estimation 2012-03-03T17:41:36.763

11 Generalized Linear Mixed Models: Diagnostics 2013-10-31T14:55:26.660

10 Good books covering data preprocessing and outlier detection techniques 2012-04-11T19:01:58.473

10 STL on time series with missing values for anomaly detection 2012-08-21T15:40:22.493

10 Influential residual vs. outlier 2013-01-02T13:46:30.453

10 How do I incorporate an innovative outlier at observation 48 in my ARIMA model? 2013-06-21T00:46:32.953

10 Anomaly detection: what algorithm to use? 2014-05-16T14:09:52.883

10 Robust estimation of kurtosis? 2014-06-19T16:08:37.300

10 Outlier detection using regression 2014-06-23T05:52:43.650

10 Outlier Detection in Time-Series: How to reduce false positives? 2014-10-17T10:17:55.257

9 Does the variable order matter in linear regression 2011-05-15T15:48:13.567

9 Online outlier detection 2011-07-13T03:03:54.877

9 Can one leave out data from research because it is not significant? 2011-09-30T08:06:16.740

9 Identifying outliers for non linear regression 2012-06-07T14:32:07.527

9 Histogram with uniform vs non-uniform Bins 2013-04-10T22:52:08.263

9 Removing outliers from data - maximum number of outliers that you can remove? 2015-01-15T12:20:58.890

9 Trimmed mean vs median 2015-02-26T12:56:43.567

8 How to identify outliers in server uptime performance data? 2011-01-05T19:17:42.883

8 Automatic threshold determination for anomaly detection 2011-05-03T13:35:45.367

8 Automatic feature selection for anomaly detection 2012-02-14T17:56:35.843

8 Support vector regression on skewed/high kurtosis data 2012-04-05T19:48:12.037

8 How to fit a model for a time series that contains outliers 2012-07-18T09:25:39.277

8 How accurate is IQR for detecting outliers 2013-05-28T14:07:15.167

8 How to correct outliers once detected for time series data forecasting? 2013-09-12T16:08:22.010

8 Do we need to worry about outliers when using rank-based tests? 2013-09-25T08:25:23.907

8 Problems with Outlier Detection 2015-02-05T20:58:52.367

8 How to prepare/construct features for anomaly detection (network security data) 2015-03-09T17:40:16.643

8 Back-testing or cross-validating when the model-building process was interactive 2015-04-29T04:59:00.207

8 How to interpret and do forecasting using tsoutliers package and auto.arima 2015-08-25T08:47:30.200

7 Dealing with "trouble maker" samples 2010-10-04T09:36:25.393

7 Is there a name for the high sensitivity of frequency of extreme data points to the mean of a normal distribution? 2011-05-01T09:38:50.040

7 Weird residuals in linear regression 2011-05-04T11:03:30.273

7 Is Ye Shiwen's 400m IM performance in Olympics "anomalous" statistically? 2012-08-08T17:39:32.243

7 Does Pearson correlation require removal of bivariate or univariate outliers? 2012-12-27T08:57:25.240

7 Outlier detection in beta distributions 2014-05-14T14:32:15.717

7 Finding outliers on a scatter plot 2014-09-03T17:42:14.130

7 Difference between Anomaly and Outlier 2016-01-07T06:26:11.130

6 On univariate outlier tests (or: Dixon Q versus Grubbs) 2010-08-11T02:33:03.993

6 Detecting abnormal points in point cloud 2011-01-27T15:04:03.230

6 Is there an R package with a pretty function that can deal effectively with outliers? 2011-06-06T06:57:07.203

6 Outlier detection for generic time series 2011-06-30T03:16:14.993

6 Is it appropriate to identify and remove outliers because they cause problems? 2011-09-13T02:14:04.933

6 Outliers spotting in time series analysis, should I pre-process data or not? 2012-02-16T10:23:26.043

6 Outlier removal prior to mixed-effect modelling 2012-04-19T14:17:21.277

6 Finding outliers without assuming normal distribution 2012-04-19T23:23:33.943

6 How to judge if a datapoint deviates substantially from the norm 2012-05-22T17:37:06.507

6 Using MAD as a way of defining a threshold for significance testing 2012-06-10T17:53:20.883

6 Identifying fraudulent questionnaires 2012-10-09T13:43:22.543

6 Checking for outliers in a glmer (lme4 package) with 3 random factors 2013-04-07T17:05:06.953

6 Median + MAD for skewed data 2013-04-24T14:52:34.843

6 Detecting outliers using 95% PI around a natural spline fit 2013-10-01T18:29:40.000

6 When finding outliers from the Interquartile range why I have to multiply by 1.5? 2013-10-20T23:16:57.080

6 Outlier detection in very small sets 2013-12-05T02:58:37.710

6 Cook's distance cut-off value 2014-02-26T13:31:54.867

6 How to quickly identify participants responding randomly to self-report psychometric tests with many items? 2014-10-29T05:42:40.003

6 R t.test ..... NOT significant anymore 2014-11-07T14:43:37.113

6 Handling outliers in Bayesian linear regression 2015-01-14T23:35:49.163