[R] converting a table to a dataframe or a matrix
Gabor Grothendieck
ggrothendieck at gmail.com
Wed Jun 4 21:39:44 CEST 2008
Either of these will do it:
head(temp, Inf)
class(temp) <- "matrix"
On Wed, Jun 4, 2008 at 3:20 PM, <markleeds at verizon.net> wrote:
>
> can someone show me how to convert a table to a data.frame or a matrix ? I
> tried below and as.data.frame rearranges the columns
> similarly to a melt from reshape and as.matrix didn't change it. I actually
> would prefer to change it to a dataframe but if someone
> can show me how to convert it to a matrix, then as.data.frame will work on
> that. I was thinking about just changing the class to matrix
> since table looks very similar to a matrix but I wasn't sure if that would
> cause side injuries. thanks.
>
> temp <- structure(c(0.345901639344262, 0.360117302052786, 0.354304635761589,
> 0.354319180087848, 0.365524402907580, 0.359455958549223, 0.340284360189573,
> 0.369763205828780, 0.304918032786885, 0.304985337243402, 0.310596026490066,
> 0.287457296242069, 0.285565939771547, 0.264248704663212, 0.297630331753555,
> 0.231329690346084, 0.349180327868852, 0.334897360703812, 0.335099337748344,
> 0.358223523670083, 0.348909657320872, 0.376295336787565, 0.362085308056872,
> 0.398907103825137), class = "table", .Dim = c(8L, 3L), .Dimnames =
> structure(list(
> c("(-1,-0.75]", "(-0.75,-0.5]", "(-0.5,-0.25]", "(-0.25,0]",
> "(0,0.25]", "(0.25,0.5]", "(0.5,0.75]", "(0.75,1]"), c("0",
> "1", "2")), .Names = c("", "")))
>
> print(temp)
>
> tempa <- as.data.frame(temp)
> tempb <- as.matrix(temp)
>
> print(str(tempa))
> print(str(tempb))
>
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