[R] exact wilcox test and Bonferroni correction

2010-01-22 Thread netrunner
Hi! I need to perform a Mann-Whitney test using Bonferroni correction. I found the function pairwise.wilcox.test. However, my data have ties. I know that when there are ties is better to perform Mann Whitney test using the function wilcox.exact. How can include in that the Bonferroni correction?

Re: [R] exact wilcox test and Bonferroni correction

2010-01-22 Thread Meyners, Michael, LAUSANNE, AppliedMathematics
- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of netrunner Sent: Freitag, 22. Januar 2010 10:41 To: r-help@r-project.org Subject: [R] exact wilcox test and Bonferroni correction Hi! I need to perform a Mann-Whitney test using Bonferroni correction

Re: [R] exact wilcox test and Bonferroni correction

2010-01-22 Thread netrunner
Dear Michael, thank you very much for your help. I perfomed the wilcox.exact function on each of the 8 items for the two groups that I am analysing (that is, I performed 8 times the wilcox test). Here an example for the values (ratings from a questionnaire) of one of the 8 items: a1=5 9 10 10

Re: [R] exact wilcox test and Bonferroni correction

2010-01-22 Thread Peter Dalgaard
netrunner wrote: Dear Michael, thank you very much for your help. I perfomed the wilcox.exact function on each of the 8 items for the two groups that I am analysing (that is, I performed 8 times the wilcox test). Here an example for the values (ratings from a questionnaire) of one of the 8

Re: [R] exact wilcox test and Bonferroni correction

2010-01-22 Thread netrunner
Dear Peter, thank you for your explanations! Originally, my idea was to apply pairwise.wilcox.test, but sincerely I do not know how have to use my data to do that. I read the documentation for the function, but I did not understand how I have to arrange my data set. Can you help me? I have two

Re: [R] exact wilcox test and Bonferroni correction

2010-01-22 Thread Peter Dalgaard
netrunner wrote: Dear Peter, thank you for your explanations! Originally, my idea was to apply pairwise.wilcox.test, but sincerely I do not know how have to use my data to do that. I read the documentation for the function, but I did not understand how I have to arrange my data set. Can

Re: [R] exact wilcox test and Bonferroni correction

2010-01-22 Thread Meyners, Michael, LAUSANNE, AppliedMathematics
: Re: [R] exact wilcox test and Bonferroni correction Dear Michael, thank you very much for your help. I perfomed the wilcox.exact function on each of the 8 items for the two groups that I am analysing (that is, I performed 8 times the wilcox test). Here an example for the values (ratings