Graphical Procedures
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Graphical Procedures
Graphical Procedures are an essential part of statistical analysis. But graphs are often poorly done, and there are some lesser known graphical methods that can be highly effective for displaying data. To name just a few of these: mosaic plots, dot plots, strip plots, lattice plots, density plots, quantile plots and various enhancements of the familiar scatterplot.
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We very often set the cutoff for a significant p value at 0.05, and minimal acceptable power at 0.8....

Cluster analysis is a set of methods for finding subjects (people, corporations, drugs, whatever) that "go...

On this site I have written quite a lot about regression analysis.
But what is...

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This is a paper for NESUG (NorthEast SAS Users' Group) 2010, which you can see as a PDF articleNESUG2010.

[latexpage] In his wonderful book "A Mathematician's Lament" Paul Lockhart...

[latexpage] The chisquare test can refer to several different types of tests. Here I will discuss the...