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Wilcoxon Signed Rank Test

Dear all,

I am Rasika. I am working on DNA barcoding of plants in NCL, Pune, India.

Can anobody help me to understand and perform Wilcoxon Signed Rank test?

Thanks and Regards

Rasika

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Permalink Reply by Vijaykumar Yogesh Muley on June 15, 2012 at 2:45pm

This is a non-parametric test for hypothesis testing when your data do not follow normal distribution. For given two measurements (distributions of values) of the same sample in two different conditions, Wilcox test check whether their population mean ranks differ. So basically, it is comparing values of two related samples to suggest the difference between them. If your data follow normal distribution then you can use t-test.

Just check excel or any statistical software for Wilcox test. Or you can use R http://www.r-project.org/ using many available online tutorials.

I hope, it will help