R help - Sep 2008 - string to numeric question

this seems l ike it shouldn't be that hard  but i give up.

if i have a string say, temp<-"01", I want to increase it by 1 so
that
it becomes "02". but the following code obviously won't work when
the
input string is say "10" because then it gives "011" when I
just want
"11".   uuugh.

does someone know an easy way ( i guess hard is fine too. beggars can't 
be choosy )  around that ?  the code below probably explains more
clearly  what i mean. thanks.

temp1 <- "01"
paste("0",as.numeric(temp1)+1,sep="")
temp10 <- "10"
paste("0",as.numeric(temp10)+1,sep="")

See ?sprintf, e.g. x2Str <- sprintf("%02d", as.integer(x)) where
'x2'
is numeric.  Use x <- as.numeric(xStr) to convert string 'xStr' to
numeric and x <- x + 1 to change the value.

/HB

On Wed, Sep 24, 2008 at 2:51 PM,  <markleeds at verizon.net>
wrote:
> this seems l ike it shouldn't be that hard  but i give up.
>
> if i have a string say, temp<-"01", I want to increase it by 1
so that it
> becomes "02". but the following code obviously won't work
when the input
> string is say "10" because then it gives "011" when I
just want "11".
> uuugh.
>
> does someone know an easy way ( i guess hard is fine too. beggars can't
be
> choosy )  around that ?  the code below probably explains more
> clearly  what i mean. thanks.
>
> temp1 <- "01"
> paste("0",as.numeric(temp1)+1,sep="")
> temp10 <- "10"
> paste("0",as.numeric(temp10)+1,sep="")
>
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