[R] problems with strsplit using a split of ' \\\ ' : a regex problem

I have a vector of gene symbols, some of which have multiple aliases. In the case of an alias, they are separated by ' \\\ '. Here is a real world example, which would represent one element of my vector: Eif4g2 /// Eif4g2-ps1 /// LOC678831 What I would like to do is input the vector into a

Re: [R] problems with strsplit using a split of ' \\\ ' : a regex problem

You need a escape before each backslash: a - c('a \\ b', 'a \\ b') cat(a, \n) You can write in this form: strsplit(a, .*\\.* ) On Thu, Aug 27, 2009 at 10:03 PM, Mark Kimpel mwkim...@gmail.com wrote: I have a vector of gene symbols, some of which have multiple aliases. In the

Re: [R] problems with strsplit using a split of ' \\\ ' : a regex problem

Thanks Henrique. I had actually tried using 6 back-slashes but didn't know to use 'cat' to see the non-escaped representation (see below to see my original confusion). Your strsplit, of course, works great. Thanks again! a [1] a \\ b a \\ b cat(a) a \\\ b a \\\ b