On Sep 22, 2011, at 12:28 PM, John Kane wrote:
And I always have a problem with reshape().
Me too.
Mind you I often have similar problems with melt()
Many fewer, though.
Anyway with the data.frame xx, try
melt(xx, id=c("ID"))
Just
newdf <- melt(xx) # would have succeeded here.
--
David
--- On Thu, 9/22/11, Uwe Ligges <lig...@statistik.tu-dortmund.de>
wrote:
From: Uwe Ligges <lig...@statistik.tu-dortmund.de>
Subject: Re: [R] need help on melt/cast
To: "Eugene Kanshin" <kanshin...@gmail.com>
Cc: r-help@r-project.org
Received: Thursday, September 22, 2011, 10:30 AM
I can never remember what melt, cast
and all that means, hence I simpy
use reshape() which does not even require any additional
package:
reshape(dat, direction="long", idvar = "ID",
varying=list(2:4), v.names="Value",
times=names(dat)[2:4])
Uwe Ligges
On 22.09.2011 15:54, Eugene Kanshin wrote:
Hello,
I need to convert dataframe from:
ID T0 T1 T2
A 1 2
3
B 4 5
6
C 7 8
9
to:
ID Variable Value
A T0
1
A T1
2
A T2
3
B T0
4
B T1
5
B T2
6
C T0
7
C T1
8
C T2
9
i tried to use melt cast but it gives me all the time
not exactly what I
need.
Thank you.
David Winsemius, MD
West Hartford, CT
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