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  1. n = c('AFD.434', 'BSD.23', 'F234.FF')
  2. gsub(pattern = '[[:upper:]]', replacement = '[[:lower:]]', n)
  3. tolower(n)
Success #stdin #stdout 0.45s 22824KB
comments (?)
stdin 
Standard input is empty
stdout 
[1] "[[:lower:]][[:lower:]][[:lower:]].434"
[2] "[[:lower:]][[:lower:]][[:lower:]].23" 
[3] "[[:lower:]]234.[[:lower:]][[:lower:]]"
[1] "afd.434" "bsd.23"  "f234.ff"
https://ideone.com/oLxNLi
language:
R (R 3.5.2)
created:
10 years ago
visibility:
secret

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