fork download
copy 
  1. a <- data.frame(id=c(1,2,2,2,3),icd9=c("0781","00840","8660","7100","25011"))
  2. sub('^(\\d{3})(\\d)', '\\1.\\2', a$icd9)
  3. # => [1] "078.1"  "008.40" "866.0"  "710.0"  "250.11"
Success #stdin #stdout 0.22s 38892KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
[1] "078.1"  "008.40" "866.0"  "710.0"  "250.11"
https://ideone.com/rLuZIr
language:
R (R 3.5.2)
created:
4 years ago
visibility:
secret

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!