## Fisher's transformation of the correlation coefficient

Pearson's correlation measures the linear association between two variables. Because the correlation is bounded between…

By Rick Wicklin 2

Pearson's correlation measures the linear association between two variables. Because the correlation is bounded between…

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Last week I blogged about the broken-stick problem in probability, which reminded me that the…

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Skewness is a measure of the asymmetry of a univariate distribution. I have previously shown…

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On discussion forums, I often see questions that ask how to Winsorize variables in SAS.…

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In the classic textbook by Johnson and Wichern (Applied Multivariate Statistical Analysis, Third Edition, 1992,…

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Somewhere in my past I encountered a panel of histograms for small random samples of…

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Loess regression is a nonparametric technique that uses local weighted regression to fit a smooth…

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The article uses the SAS DATA step and Base SAS procedures to estimate the coverage…

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Many univariate descriptive statistics are intuitive. However, weighted statistic are less intuitive. A weight variable…

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'Tis a gift to be simple. -- Shaker hymn In June 2015 I published a…