Hi R,

 

Again struck with regular expressions...

 

Suppose,

 

S=c("World_is_beautiful", "one_two_three_four","My_book")

 

I need to extract the last but one element of the strings. So, my output should look like:

Ans=c("is","three","My")

 

gsub() can do this...but wondering how do I give the regular expression....

 

 

 

Shubha Karanth | Amba Research

Ph +91 80 3980 8031 | Mob +91 94 4886 4510 

Bangalore * Colombo * London * New York * San José * Singapore * www.ambaresearch.com

 

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