whuber
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# 140,303 Reputation

180 today
 +120 2 hours ago 12 events Why isn't variance defined as the difference between every value following each other? +10 2 hours ago upvote Bottom to top explanation of the Mahalanobis distance? +10 3 hours ago upvote Is there a reference that legitimises the use of the unpooled z-test to compare two proportions? +10 4 hours ago upvote Determining true mean from noisy observations +10 4 hours ago upvote Experiment design: Can unbalanced dataset be better than balanced? +10 11 hours ago upvote Confirming the distribution of residuals in linear regression +10 11 hours ago upvote Why do some people use -999 or -9999 to replace missing values?
215 yesterday
 +80 22:21 11 events Why isn't variance defined as the difference between every value following each other? +25 01:05 2 events Kendall's tau derivation from first principles? +20 22:28 3 events More efficient way to create Block Toeplitz matrix in R? +20 19:34 2 events Moderated regression: Why do we calculate a *product* term between the predictors? +10 22:33 2 events Why do some people use -999 or -9999 to replace missing values? +10 22:32 2 events P-value word problem question +10 18:35 upvote Is $R^2$ useful or dangerous? +10 17:39 upvote What is meant by a “random variable”? +10 17:25 upvote Link between variance and pairwise distances within a variable +10 13:12 upvote What skills are required to perform large scale statistical analyses? +10 12:18 upvote How to use principal components analysis to select variables for regression? 22:42 2 events Probability of finding a new smallest value 21:05 upvote Intuitive explanation of unit root
200 2 days ago
 +55 17:45 5 events Probability of finding a new smallest value +30 09:36 3 events P-value word problem question +25 19:07 2 events Distribution of the ratio of dependent chi-square random variables +20 23:20 2 events What is meant by a “random variable”? +20 08:38 2 events Why do some people use -999 or -9999 to replace missing values? +10 18:40 upvote Question on how to normalize regression coefficient +10 17:49 upvote In linear regression, when is it appropriate to use the log of an independent variable instead of the actual values? +10 13:09 upvote Generate uniformly distributed weights that sum to unity? +10 10:41 upvote Best practices when treating range data as continuous +10 09:13 upvote How do I find peaks in a dataset?
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