Hi. You also could try functions melt/cast from reshape2 package.
https://seananderson.ca/2013/10/19/reshape/ Cheers Petr > -----Original Message----- > From: R-help <r-help-boun...@r-project.org> On Behalf Of Kai Yang via R- > help > Sent: Saturday, May 15, 2021 2:55 AM > To: r-help@r-project.org; Rolf Turner <r.tur...@auckland.ac.nz> > Subject: Re: [R] Create a function problem > > Hi Rolf, > I am a beginner for R. > I have a date frame raw. it contents the fields of pedigree.name, UPN, > Test.Result.tr_Test.Result1, Result.tr_gene1, > Test.Result.tr_Variant..nucleotide.1 ...... Test.Result.tr_Test.Result20, > Result.tr_gene20, Test.Result.tr_Variant..nucleotide.20 > Basically, I want transpose the data frame from wide format into long > format. So, I hope the function can generate subset the those fields for 20 > times, rename them and then stack them into one long format data > frame. After that, I hope I can use "for" loop to do this. > And now, I don't know how to fix the error Thank you,Kai > > > > > On Friday, May 14, 2021, 05:38:18 PM PDT, Rolf Turner > <r.tur...@auckland.ac.nz> wrote: > > > On Fri, 14 May 2021 17:42:12 +0000 (UTC) > Kai Yang via R-help <r-help@r-project.org> wrote: > > > Hello List, I was trying to write a function. But I got a error > > message. Can someone help me how to fix it? Many thanks,Kai > > > k_subset <- function(p, a, b, c){ > > + p <- select(raw > > + ,Pedigree.name > > + ,UPN > > + ,a > > + ,b > > + ,c > > + ) > > + } > > > k_subset(p1, Test.Result.tr_Test.Result1, Result.tr_gene1, > > > Test.Result.tr_Variant..nucleotide.1 ) > > Error: object 'Test.Result.tr_Test.Result1' not found > > I would have thought the error message to be completely > self-explanatory. The object in question cannot be found. I.e. it > does not exist, in your workspace or in any of the data bases on your > search path. > > It would appear that you have not created "Test.Result.tr_Test.Result1". > Why did you expect it to be present? > > Moreover, the code of your function makes no sense at all, at least not > to *my* feeble brain. The quantities "raw", "Pedigree.name" and "UPN" > are not arguments of your function. How do you expect k_subset() to > know what they are? > > cheers, > > Rolf Turner > > -- > Honorary Research Fellow > Department of Statistics > University of Auckland > Phone: +64-9-373-7599 ext. 88276 > > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > 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@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
