nilforooshan/paste_cols.md

Last active March 30, 2019 08:54

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R: Paste columns together in a new column

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Paste columns together in a new column

A sample data:

(mydf = data.frame(w = 1:3, x = c('a','b','c'), y = c('d', 'e', 'f'), z = c('g', 'h', 'i')))

  w x y z
1 1 a d g
2 2 b e h
3 3 c f i

Example:

(mydf$zz <- apply(data[,2:4], 1, paste, collapse = ""))

  w x y z  zz
1 1 a d g adg
2 2 b e h beh
3 3 c f i cfi