You can alway convert to lower case afterwards with probably a shorter
vector. You did not indicate that you needed that conversion; it only
looked like you did it for the regular expression.
On Fri, Sep 14, 2012 at 3:13 PM, Sam Steingold <s...@gnu.org> wrote:
>> * jim holtman <wubyg...@tznvy.pbz> [2012-09-14 13:10:37 -0400]:
>>
>> more than half the time is in 'tolower' and 'nchar', so it is not all
>> 'sub's problem.
>
> aha, thanks!
>
>> This version runs a little faster since it does not need the 'tolower':
>>
>> canonicalize.language <- function (s) {
>> # s <- tolower(s)
>> long <- nchar(s) == 5
>> s[long] <- sub("^([[:alpha:]]{2})[-_][[:alpha:]]{2}$","\\1",s[long])
>> s[nchar(s) != 2 & s != "c"] <- "unknown"
>> s
>> }
>
> but it does not convert "EN" to "en", so it is not good for my purposes.
>
> --
> Sam Steingold (http://sds.podval.org/) on Ubuntu 12.04 (precise) X
> 11.0.11103000
> http://www.childpsy.net/ http://thereligionofpeace.com http://mideasttruth.com
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> Life is like Tetris: failures accumulate, successes fade.
--
Jim Holtman
Data Munger Guru
What is the problem that you are trying to solve?
Tell me what you want to do, not how you want to do it.
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