Hi
Given that things like the following work
> a <- c("-.1"," 2.7 ","B")
> a
[1] "-.1" " 2.7 " "B"
> as.numeric(a)
[1] -0.1 2.7 NA
Warning message:
NAs introduced by coercion
>
I naively expected that the following would behave differently.
> b <- c('10%', '-20%', '30.0%', '.40%')
> b
[1] "10%" "-20%" "30.0%" ".40%"
> as.numeric(b)
[1] NA NA NA NA
Warning message:
NAs introduced by coercion
>
> version
_
platform i386-pc-mingw32
arch i386
os mingw32
system i386, mingw32
status
major 2
minor 2.0
year 2005
month 10
day 06
svn rev 35749
language R
>
Various RSiteSearches with terms like "percentage" and "coercion" yielded
nothing.
Does anyone know how to do this elegantly?
Thanks
Tobias Brandt
P.S. Apologies if this appears on the list twice but I suspect an earlier
post was blocked since it was in html format.
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