Learn what analysis of variance (ANOVA) is, how it works, and when to use it. See how it helps compare means across multiple data groups in statistics and research.
A categorical variable is defined as one that can assume only a limited number of values. For example, a person's sex is a categorical variable that can assume one of two values. Variables with levels ...
This example uses the REG procedure to create plots from a data set. The variance inflation factors (output by the OUTVIF option in the previous example) are plotted against the ridge regression ...
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