Message-ID: <644e1f320902251704g4d1aeec5x88b40d908cda493f@mail.gmail.com>
Date: 2009-02-26T01:04:36Z
From: jim holtman
Subject: reshape from wide to long
In-Reply-To: <14825e3f0902251359t67ffc677ne686483a87e8ac13@mail.gmail.com>
You can use the 'reshape' package:
> x <- read.table(textConnection(" Grp X0 X3 X6 X12 X25 X50
+ 1 C 0.5326517 0.6930942 0.9403883 1.157571 2.483117 2.809012
+ 2 C 0.4715917 0.8613200 2.0706117 2.937632 7.530960 7.120678
+ 3 C 0.5021217 0.7772071 1.5055000 2.047601 5.007038 4.964845
+ 4 E 0.5845200 0.6439033 0.8221400 2.148100 1.862153 12.412500
+ 5 E 0.2985675 0.6561142 1.0987058 2.842180 4.057899 2.319930
+ 6 E 1.7854500 1.9813878 1.8340700 3.507966 1.120367 2.603823
+ 7 E 6.4370500 2.2302000 18.5271000 17.139600 22.978400 7.116638
+ 8 E 2.2763969 1.3779013 5.5705040 6.409461 7.504704 6.113223
+ 9 T 0.9649327 0.9825045 1.0099582 1.713536 4.652827 3.877736
+ 10 T 2.0774727 2.4916545 4.0087455 8.183382 26.381091 26.279636
+ 11 T 2.2527000 2.6311091 3.1711727 4.316418 9.255364 28.771473
+ 12 T 1.3989636 1.7640273 2.5264636 4.712164 23.606545 32.030000
+ 13 T 1.4211167 1.5128417 1.7613583 2.351858 8.411725 55.448000
+ 14 T 1.5992167 2.2668167 2.5927667 2.947150 6.025300 24.984767
+ 15 T 2.9468333 3.3383667 3.1090667 3.244675 3.037425 2.679587
+ 16 T 1.0867725 1.7652583 2.0307008 5.201625 8.279975 14.693583
+ 17 T 1.7185010 2.0940723 2.5262791 4.083851 11.206282
23.595598"), header=TRUE)
> closeAllConnections()
> require(reshape)
Loading required package: reshape
Loading required package: plyr
> x.m <- melt(x)
Using Grp as id variables
>
> head(x.m)
Grp variable value
1 C X0 0.5326517
2 C X0 0.4715917
3 C X0 0.5021217
4 E X0 0.5845200
5 E X0 0.2985675
6 E X0 1.7854500
>
On Wed, Feb 25, 2009 at 4:59 PM, Veerappa Chetty <chettyvk at gmail.com> wrote:
> Hi,I would like to reshape the following "wide" data set to "long" form. I
> would appreciate help with the correct code for "reshape". I tried a few
> unsuccessfully.
> Thanks.
> Chetty
> __________________________________________________
> dat.1
>
> ?Grp ? ? ? ?X0 ? ? ? ?X3 ? ? ? ? ? ? ? X6 ? ? ? ? ? X12 ? ? ? ? ?X25
> ? ?X501 ? ?C 0.5326517 0.6930942 ?0.9403883 ?1.157571 ?2.483117 ?2.809012
> 2 ? ?C 0.4715917 0.8613200 ?2.0706117 ?2.937632 ?7.530960 ?7.120678
> 3 ? ?C 0.5021217 0.7772071 ?1.5055000 ?2.047601 ?5.007038 ?4.964845
> 4 ? ?E 0.5845200 0.6439033 ?0.8221400 ?2.148100 ?1.862153 12.412500
> 5 ? ?E 0.2985675 0.6561142 ?1.0987058 ?2.842180 ?4.057899 ?2.319930
> 6 ? ?E 1.7854500 1.9813878 ?1.8340700 ?3.507966 ?1.120367 ?2.603823
> 7 ? ?E 6.4370500 2.2302000 18.5271000 17.139600 22.978400 ?7.116638
> 8 ? ?E 2.2763969 1.3779013 ?5.5705040 ?6.409461 ?7.504704 ?6.113223
> 9 ? ?T 0.9649327 0.9825045 ?1.0099582 ?1.713536 ?4.652827 ?3.877736
> 10 ? T 2.0774727 2.4916545 ?4.0087455 ?8.183382 26.381091 26.279636
> 11 ? T 2.2527000 2.6311091 ?3.1711727 ?4.316418 ?9.255364 28.771473
> 12 ? T 1.3989636 1.7640273 ?2.5264636 ?4.712164 23.606545 32.030000
> 13 ? T 1.4211167 1.5128417 ?1.7613583 ?2.351858 ?8.411725 55.448000
> 14 ? T 1.5992167 2.2668167 ?2.5927667 ?2.947150 ?6.025300 24.984767
> 15 ? T 2.9468333 3.3383667 ?3.1090667 ?3.244675 ?3.037425 ?2.679587
> 16 ? T 1.0867725 1.7652583 ?2.0307008 ?5.201625 ?8.279975 14.693583
> 17 ? T 1.7185010 2.0940723 ?2.5262791 ?4.083851 11.206282 23.595598
>
>
> --
> Professor of Family Medicine
> Boston University
> Tel: 617-414-6221, Fax:617-414-3345
> emails: chettyvk at gmail.com,vchetty at bu.edu
>
> ? ? ? ?[[alternative HTML version deleted]]
>
> ______________________________________________
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
--
Jim Holtman
Cincinnati, OH
+1 513 646 9390
What is the problem that you are trying to solve?