CSAN, the Comprehensive S-PLUS Archive Network, provides data analysis and statistical methods to the community of S-PLUS users. The methods are provided as self contained software packages that can be loaded into S-PLUS. The initial packages are S-PLUS specific. With recent work on making common functions and interfaces in S-PLUS and R, we intend this site to grow into a collection of open-source, cross-dialect-compatible packages over time.
Anderson-Darling K-Sample Test and Combinations of Such Tests
The Anderson-Darling K-sample test can be used to test whether several independent random samples of various sizes come from the same but unspecified continuous distribution. It is a rank test and consistent against all alternatives. A low to moderate number of tied observations can be tolerated. The combination of such tests can be used to test whether M groups of samples (with K allowed to vary from group to group) come from respective common distributions, which may vary from group to group. This is useful in testing for treatment effects in randomized (incomplete) block designs or in examining whether several laboratories perform equally well when asked to measure a sufficient number of test speciments from different batches or materials.
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