Re: [R] combining P values using Fisher's method
Page 14 of the working paper http://www.burns-stat.com/pages/Working/perfmeasrandport.pdf gives an example of why you might not want to use Fisher's method, and it gives R code for Stouffer's method. Patrick Burns [EMAIL PROTECTED] +44 (0)20 8525 0696 http://www.burns-stat.com (home of S Poetry and A Guide for the Unwilling S User) Jiong Zhang, PhD wrote: Hi All, Can somebody tell me how to use R to combine p values using Fisher's method? thanks. Jiong The email message (and any attachments) is for the sole use of the intended recipient(s) and may contain confidential information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of the original message (and any attachments). Thank You. [[alternative HTML version deleted]] __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] combining P values using Fisher's method
Hi All, Can somebody tell me how to use R to combine p values using Fisher's method? thanks. Jiong The email message (and any attachments) is for the sole use of the intended recipient(s) and may contain confidential information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of the original message (and any attachments). Thank You. [[alternative HTML version deleted]] __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] combining P values using Fisher's method
On 08/16/07 12:50, Jiong Zhang, PhD wrote: Hi All, Can somebody tell me how to use R to combine p values using Fisher's method? thanks. This might get you started. It is for the sole purpose of combining two two-tailed p-values for effects in the same direction. Thus, it is not very general. I think it gives a one-tailed result. Better check it. combine - function(x,y) return(pchisq(-2*log(x/2)-2*log(y/2),4,low=F)) -- Jonathan Baron, Professor of Psychology, University of Pennsylvania Home page: http://www.sas.upenn.edu/~baron __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
