Hi, Try this: set.seed(15) datos<-as.data.frame(matrix(sample(c(1:20,NA),30,replace=TRUE),ncol=6)) do.call(paste,c(na.omit(datos),sep=";")) #[1] "5;18;14;10;17;3" "14;15;15;3;2;20" "8;18;19;17;12;11"
A.K. ----- Original Message ----- From: Dominic Roye <dominic.r...@gmail.com> To: r-help@r-project.org Cc: Sent: Tuesday, December 4, 2012 7:38 AM Subject: [R] do.call Hello, I have a problem with the "do.call-function". I would like to merge the values of more than 30 columns, but not in all of the rows exist values, so with this commando i get a lot of ";" or NA. How get i only the merge of cells with a number? datos$NEW <- do.call(paste, c(datos[,19:53], sep = ";")) $ NEW : chr "218.0;;;;;;;;;;;;;;;;;;;;;;;;NA;;;NA;;;NA;NA;NA;NA;NA I hope you can help me. Thanks! Best regards, Dominic ______________________________________________ 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. ______________________________________________ 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.
