Message-ID: <971536df0902212106h53dd8db7ra19ecc31b3dc5a9d@mail.gmail.com>
Date: 2009-02-22T05:06:29Z
From: Gabor Grothendieck
Subject: How to reshape this data frame from long to wide ?
In-Reply-To: <42d0a5730902211923v2a0a4d56i7dc05bcad5baf235@mail.gmail.com>
Not completely clear what you want (it does not appear to be a
conventional reshape) but try this:
> m <- matrix(c("A", "A", "B", "1", "2", "3"), 3, 2)
> structure(do.call(cbind, lapply(tapply(m[,2], m[,1], c), ts)), tsp = NULL, class = NULL)
A B
[1,] "1" "3"
[2,] "2" NA
On Sat, Feb 21, 2009 at 10:23 PM, Daren Tan <darentan76 at gmail.com> wrote:
> I tried cast and melt in reshape package, but still can't convert this data
> frame m
>
> m
> [,1] [,2]
> [1,] "A" "1"
> [2,] "A" "2"
> [3,] "B" "3"
> to this form.
>
> m1
> [,1] [,2]
> [1,] "A" "B"
> [2,] "1" "3"
> [3,] "2" NA
> Please help.
>
> [[alternative HTML version deleted]]
>
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