[R] drop a letter

Chuck Cleland ccleland at optonline.net
Wed May 16 11:03:51 CEST 2007


elyakhlifi mustapha wrote:
> hello,
> how can I do to drop C from this character  "C325"  ?

> x <- "C325"

> substring(x, first=2)
[1] "325"

> gsub("C", "", x)
[1] "325"

> gsub("[A-Z]", "", x)
[1] "325"

?substring
?gsub

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