[R] data.frame to character - thanks

[Gabor Grothendieck]

Here is one minor improvement -- it does not overwrite the input:

replace(d,,as.matrix(d))



On 6/10/05, Muhammad Subianto <subianto at gmail.com> wrote:
> Dear all,
> Thank you very much for your help.
> I would like to thank Andy Liaw and Gabor Grothendieck for their fast help.
> 
> Regards,
> Muhammad Subianto
> 
> On this day 6/10/2005 2:30 PM, Liaw, Andy wrote:
>  > Is this what you want?
>  >
>  >
>  >>d[] <- lapply(d, as.character)
>  >>str(d)
>  >
>  > `data.frame':   10 obs. of  3 variables:
>  >  $ x  : chr  "XYZ" "XYZ" "XYZ" "XYZ" ...
>  >  $ y  : chr  "A" "B" "C" "D" ...
>  >  $ fac: chr  "B" "A" "C" "B" ...
>  >
>  > Andy
> 
> On this day 6/10/2005 2:35 PM, Gabor Grothendieck wrote:
>  > On 6/10/05, Muhammad Subianto <subianto at gmail.com> wrote:
>  >
>  >>Hi,
>  >>Excuse me for this simple question.
>  >>How to convert as.data.frame to as.character?
>  >>
>  >> ?data.frame
>  >>
>  >> > L3 <- LETTERS[1:3]
>  >> >  L10 <- LETTERS[1:10]
>  >> >  d <- data.frame(cbind(x=c("XYZ"), y=L10), fac=sample(L3, 10,
> repl=TRUE))
>  >
>  >
>  >
>  > d[] <- as.matrix(d)
>  >
> 
> On this day 6/10/2005 2:23 PM, Muhammad Subianto wrote:
> > Hi,
> > Excuse me for this simple question.
> > How to convert as.data.frame to as.character?
> >
> >   ?data.frame
> >
> >  > L3 <- LETTERS[1:3]
> >  >  L10 <- LETTERS[1:10]
> >  >  d <- data.frame(cbind(x=c("XYZ"), y=L10), fac=sample(L3, 10, repl=TRUE))
> >  >  d
> >       x y fac
> > 1  XYZ A   A
> > 2  XYZ B   A
> > 3  XYZ C   A
> > 4  XYZ D   A
> > 5  XYZ E   B
> > 6  XYZ F   C
> > 7  XYZ G   A
> > 8  XYZ H   C
> > 9  XYZ I   B
> > 10 XYZ J   A
> >  >  str(d)
> > `data.frame':   10 obs. of  3 variables:
> >   $ x  : Factor w/ 1 level "XYZ": 1 1 1 1 1 1 1 1 1 1
> >   $ y  : Factor w/ 10 levels "A","B","C","D",..: 1 2 3 4 5 6 7 8 9 10
> >   $ fac: Factor w/ 3 levels "A","B","C": 1 1 1 1 2 3 1 3 2 1
> >  >  d[3,]
> >      x y fac
> > 3 XYZ C   A
> >  >
> >  >  as.character(d[3,])
> > [1] "1" "3" "1"
> >  >
> >
> > I think as.character the result something like
> > [3] "XYZ" "C" "A"
> >
> > I don't know how to convert it.
> > Any help gratefully received.
> > Thank you very much in advance.
> > Kindly regards,
> > Muhammad Subianto
> >
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> >
> 
>