Douglas Grove wrote:
Hi,
What's the best way of dropping leading or trailing
blanks from a character string?
The only thing I can think of is using sub() to replace
blanks with null strings, but I don't know if there is
a better way (I also don't know how to represent the
trailing blank in a regular expression).
I would use gsub instead:
R> ch = " lkj df klj lkjsdf "
R> ch
[1] " lkj df klj lkjsdf "
R> gsub("^ .", "", ch) # remove leading white space
[1] "lkj df klj lkjsdf "
R> gsub(". $", "", ch) # remove trailing white space
[1] " lkj df klj lkjsdf"
R>
Regards,
Sundar
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