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  1. library(stringr)
  2. t_chart <- 'X201A61NA231.1W'
  3. str_replace_all(t_chart, '[a-zA-Z]+|\\.1','')
Success #stdin #stdout 0.28s 42500KB
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[1] "20161231"
https://ideone.com/Jlr1f5
language:
R (R 3.5.2)
created:
4 years ago
visibility:
secret

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