Split data.frame row into multiple rows based on commas

Question

I am attempting to split a row in a data.frame based on the character sequence \", \". Here\'s an example:

mydat <- data.frame(v1 = c(\"name,         


        

Answer 1

Here's another way using data.table package and its new tstrsplit function

library(data.table) # v >= 1.9.5
setDT(mydat)[, lapply(.SD, tstrsplit, ", "), by = v3]
#    v3    v1 v2
# 1:  1  name  1
# 2:  1 name2  2
# 3:  2 name3  3
# 4:  3 name4  4
# 5:  3 name5  5