Proc Npar1way Wilcoxon. The WILCOXON option specifies that Wilcoxon scores are to be used. Feb 17 2009 2075 proc npar1way wilcoxon median edf datasasuserpedifalls.
In SAS PROC MEANS can be used to produce basic descriptive statistics. Oct 23 2009 In order to calculate AUC for a given SAS data set that is already rank ordered by a binary classifier such as linear logistic regression where we have the binary outcome Y and rank order measurement P_0 or P_1 for class 0 and 1 respectively we can use PROC NPAR1WAY to obtain Wilcoxon Rank Sum statistics and from there we are able to obtain accurate measurement. Additionally it has been shown that particular nonparametric tests for example the Wilcoxon have high Pitman relative efficiencies.
This procedure uses Mehta and Patels network algorithm substantially reducing the computational effort required.
If you do not specify any analysis options or a STRATA statement PROC NPAR1WAY performs an analysis of variance ANOVA option tests for location differences WILCOXON MEDIAN SAVAGE and VW options and empirical distribution function tests EDF option. In SAS PROC MEANS can be used to produce basic descriptive statistics. Subjects were given a drug depressant stimulant and placebo and then asked to spend an hour working on 85 arithmetic problems. The CLASS statement specifies that the variable Stim determines the classes.
