[R] Filter Values Out of R Output
Hi list Is there a possibility to filter certain values out of an R output? In my case: I want to create a vector of p-values in a for loop that invokes for every increment cor.test() on two vectors. I haven't found a way yet to tell cor.test() to only return the p- values instead of the whole text. Thanks, Tobi __ R-help@r-project.org 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] Filter Values Out of R Output
Dear Tobias, From ?cor.test: # Data set x - c(44.4, 45.9, 41.9, 53.3, 44.7, 44.1, 50.7, 45.2, 60.1) y - c( 2.6, 3.1, 2.5, 5.0, 3.6, 4.0, 5.2, 2.8, 3.8) # Including text res=cor.test(x, y, method = pearson) res # Just the p.value res$p.value Also, you might be interested in thishttp://www.nabble.com/Re:-applying-cor.test-to-a-(m,-n)-matrix---SUMMARY-to17150239.html#a17150239post. HTH, Jorge On Wed, Sep 3, 2008 at 12:20 PM, Tobias Binz [EMAIL PROTECTED] wrote: Hi list Is there a possibility to filter certain values out of an R output? In my case: I want to create a vector of p-values in a for loop that invokes for every increment cor.test() on two vectors. I haven't found a way yet to tell cor.test() to only return the p-values instead of the whole text. Thanks, Tobi __ R-help@r-project.org 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. [[alternative HTML version deleted]] __ R-help@r-project.org 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] Filter Values Out of R Output
On 9/3/2008 12:20 PM, Tobias Binz wrote: Hi list Is there a possibility to filter certain values out of an R output? In my case: I want to create a vector of p-values in a for loop that invokes for every increment cor.test() on two vectors. I haven't found a way yet to tell cor.test() to only return the p-values instead of the whole text. str() will compactly display the structure of an object, including the result of calling cor.test(). Once you know the structure, you can isolate and save a component. x - c(44.4, 45.9, 41.9, 53.3, 44.7, 44.1, 50.7, 45.2, 60.1) y - c( 2.6, 3.1, 2.5, 5.0, 3.6, 4.0, 5.2, 2.8, 3.8) str(cor.test(x, y, method = kendall, alternative = greater)) List of 8 $ statistic : Named num 26 ..- attr(*, names)= chr T $ parameter : NULL $ p.value: num 0.0597 $ estimate : Named num 0.444 ..- attr(*, names)= chr tau $ null.value : Named num 0 ..- attr(*, names)= chr tau $ alternative: chr greater $ method : chr Kendall's rank correlation tau $ data.name : chr x and y - attr(*, class)= chr htest cor.test(x, y, method = kendall, alternative = greater)$p.value [1] 0.05971947 Thanks, Tobi __ R-help@r-project.org 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. -- Chuck Cleland, Ph.D. NDRI, Inc. (www.ndri.org) 71 West 23rd Street, 8th floor New York, NY 10010 tel: (212) 845-4495 (Tu, Th) tel: (732) 512-0171 (M, W, F) fax: (917) 438-0894 __ R-help@r-project.org 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.
