Re: [R] getting variables based on name

This turns out to be quite easy... Given: > head(data) inst a1 a2 a3 a4 a5 a6 a7 a8 escore 11 1 1 0 1 1 0 0 0 4 21 0 1 0 0 0 0 0 0 1 31 1 0 0 1 0 1 1 1 2 41 0 1 0 0 0 1 0 0 1 You can use grep on the names of the columns in d

Re: [R] getting variables based on name

thanks very much for the quick and accurate response! Rnewb -- View this message in context: http://www.nabble.com/getting-variables-based-on-name-tp25725837p25726184.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.o

[R] getting variables based on name

I have a file like this: a1,a2,a3,b1,b2,b3 1,2,3,4,5,6 0,1,2,3,4,5 ... In interactive command-line R, I type data<-read.table('file.txt', sep=',', header=TRUE) I then want to get all the columns which start with the letter a. For this particular file, I can the type: data[1:3] What if i don

Re: [R] getting variables based on name

This turns out to be quite easy... Given: > head(data) inst a1 a2 a3 a4 a5 a6 a7 a8 escore 11 1 1 0 1 1 0 0 0 4 21 0 1 0 0 0 0 0 0 1 31 1 0 0 1 0 1 1 1 2 41 0 1 0 0 0 1 0 0 1 You can use grep on the names of the columns in d