Re: [R] merge some columns

2011-09-02 Thread David Winsemius
On Sep 2, 2011, at 9:30 AM, David Winsemius wrote: On Sep 2, 2011, at 8:34 AM, Joao Fadista wrote: Dear all, I would like to know how to merge columns like: Input file: V1 V2 V3 V4 V5 V6 1 G A G G G G 2 A A G A A G Looked like an mapply-type problem: > with(dat, mapply

Re: [R] merge some columns

2011-09-02 Thread David Winsemius
On Sep 2, 2011, at 8:34 AM, Joao Fadista wrote: Dear all, I would like to know how to merge columns like: Input file: V1 V2 V3 V4 V5 V6 1 G A G G G G 2 A A G A A G Looked like an mapply-type problem: > with(dat, mapply(paste, list(V1, V3, V5),

Re: [R] merge some columns

2011-09-02 Thread Dennis Murphy
Hi: Here's one approach: d <- read.table(textConnection(" V1 V2 V3 V4 V5 V6 1 G A G G G G 2 A A G A A G"), header = TRUE, stringsAsFactors = FALSE) closeAllConnections() # Create two vectors of variable names, one for odd numbered, # one for even numbered vars1 <- names(d)[seq_along(

[R] merge some columns

2011-09-02 Thread Joao Fadista
Dear all, I would like to know how to merge columns like: Input file: V1 V2 V3 V4 V5 V6 1 G A G G G G 2 A A G A A G Desired output file: V1 V2 V3 1 G/A G/G G/G 2 A/A G/A A/G So for every 2 consecutive columns merge their content into one. Thanks in advance. [[al