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APL programs for P-values in Wilcoxon's one-sample and two-sample tests

Computer Programs in Biomedicine

|August 1, 1980

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This study presents APL programs for calculating one-sided P-values in Wilcoxon tests. These programs determine the probability of observing a rank sum as low as or lower than the one recorded in statistical analyses.

Area of Science:

Statistics
Computational Biology

Background:

Wilcoxon rank-sum tests are essential non-parametric statistical methods.
Accurate computation of P-values is crucial for hypothesis testing.

Purpose of the Study:

To describe and list APL programs for computing one-sided P-values.
To facilitate the application of Wilcoxon's one-sample and two-sample tests.

Main Methods:

Development of APL programs.
Implementation of algorithms for one-sided P-value calculation.

Main Results:

A functional set of APL programs for Wilcoxon tests.
Efficient computation of probabilities for observed rank sums.

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Conclusions:

The provided APL programs offer a practical tool for statistical analysis.
These programs enhance the usability of Wilcoxon tests in research settings.