How to Reverse a string in R

Question

I\'m trying to teach myself R and in doing some sample problems I came across the need to reverse a string.

Here\'s what I\'ve tried so far but the paste operation d

Answer 1

If your data is in a data.frame, you can use sqldf:

myStrings <- data.frame(forward = c("does", "this", "actually", "work"))
library(sqldf)
sqldf("select forward, reverse(forward) `reverse` from myStrings")
#    forward  reverse
# 1     does     seod
# 2     this     siht
# 3 actually yllautca
# 4     work     krow

Answer 2

The following Code will take input from user and reverse the entire string-

revstring=function(s)
print(paste(rev(strsplit(s,"")[[1]]),collapse=""))

str=readline("Enter the string:")
revstring(str)