Cuzick's test (Scripts) Publisher's description
from Giuseppe Cardillo
This function provides a Wilcoxon-type test for trend across a group of three or more independent random samples
This function provides a Wilcoxon-type test for trend across a group of three or more independent random samples.
- Data must be at least ordinal
- Groups must be selected in a meaningful order i.e. ordered
If you do not choose to enter your own group scores then scores are allocated uniformly (1 ... n) in order of selection of the n groups.
The null hypothesis of no trend across the groups T will have mean E(T), variance var(T) and the null hypothesis is tested using the normalised test statistic z.
A logistic distribution is assumed for errors. Please note that this test is more powerful than the application of the Wilcoxon rank-sum/Mann-Whitney test between more than two groups of data.
Cuzick J. A Wilcoxon-Type Test for Trend. Statistics in Medicine
System Requirements:MATLAB 7.7 (R2008b)
Program Release Status: New Release
Program Install Support: Install and Uninstall