I\'ve been figuring this out for a couple of hours now. Let\'s say I have a column with 1-4 words, separated by space:
aba bkak absbs
a2aj akls bios
sad
fasa
With the devel verison of data.table
could also do
library(data.table) # V >= 1.9.5
setDT(df)[, tstrsplit(V1, ' ')]
# V1 V2 V3
# 1: aba bkak absbs
# 2: a2aj akls bios
# 3: sad NA NA
# 4: fasa lgk NA
Or with stringi
(though you'll get a matrix back)
library(stringi)
stri_split_fixed(df$V1, ' ', simplify = TRUE)