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wide to long multiple measures each time

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r

I know the wide to long has been asked way too many times on here but I can't figure out how to turn the following into long format. Shoot I even asked one of the wide to long with 2 repeated measures on SO. I'm becoming frustrated with my inability to convert my data. How can I turn this (variable order doesn't matter):

      id trt    work.T1   play.T1   talk.T1   total.T1    work.T2    play.T2   talk.T2  total.T2
1   x1.1 cnt 0.34434350 0.7841665 0.1079332 0.88803151 0.64836951 0.87954320 0.7233519 0.5630988
2   x1.2  tr 0.06132255 0.8426960 0.3338658 0.04685878 0.23478670 0.19711687 0.5164015 0.7617968
3   x1.3  tr 0.36897981 0.1834721 0.3241316 0.76904051 0.07629721 0.06945971 0.4118995 0.7452974
4   x1.4  tr 0.40759356 0.5285396 0.5654258 0.23022542 0.92309504 0.15733957 0.4132653 0.7078273
5   x1.5 cnt 0.91433676 0.7029476 0.2031782 0.31518412 0.14721669 0.33345678 0.7620444 0.9868082
6   x1.6  tr 0.88870525 0.9132728 0.2197045 0.28266959 0.82239037 0.18006177 0.2591765 0.4516309
7   x1.7 cnt 0.98373218 0.2591739 0.6331153 0.71319565 0.41351839 0.14648269 0.7631898 0.1182174
8   x1.8  tr 0.47719528 0.7926248 0.3525205 0.86213792 0.61252061 0.29057544 0.9824048 0.2386353
9   x1.9  tr 0.69350823 0.6144696 0.8568732 0.10632352 0.06812050 0.93606889 0.6701190 0.4705228
10 x1.10 cnt 0.42574646 0.7006205 0.9507216 0.55032776 0.90413220 0.10246047 0.5899279 0.3523231

into this:

      id trt time       work       play      talk      total
1   x1.1 cnt    1 0.34434350 0.78416653 0.1079332 0.88803151
2   x1.2  tr    1 0.06132255 0.84269599 0.3338658 0.04685878
3   x1.3  tr    1 0.36897981 0.18347215 0.3241316 0.76904051
4   x1.4  tr    1 0.40759356 0.52853960 0.5654258 0.23022542
5   x1.5 cnt    1 0.91433676 0.70294755 0.2031782 0.31518412
6   x1.6  tr    1 0.88870525 0.91327276 0.2197045 0.28266959
7   x1.7 cnt    1 0.98373218 0.25917392 0.6331153 0.71319565
8   x1.8  tr    1 0.47719528 0.79262477 0.3525205 0.86213792
9   x1.9  tr    1 0.69350823 0.61446955 0.8568732 0.10632352
10 x1.10 cnt    1 0.42574646 0.70062053 0.9507216 0.55032776
11  x1.1 cnt    2 0.64836951 0.87954320 0.7233519 0.56309884
12  x1.2  tr    2 0.23478670 0.19711687 0.5164015 0.76179680
13  x1.3  tr    2 0.07629722 0.06945971 0.4118995 0.74529740
14  x1.4  tr    2 0.92309504 0.15733957 0.4132653 0.70782726
15  x1.5 cnt    2 0.14721669 0.33345678 0.7620444 0.98680824
16  x1.6  tr    2 0.82239038 0.18006177 0.2591765 0.45163091
17  x1.7 cnt    2 0.41351839 0.14648269 0.7631898 0.11821741
18  x1.8  tr    2 0.61252061 0.29057544 0.9824048 0.23863532
19  x1.9  tr    2 0.06812050 0.93606889 0.6701190 0.47052276
20 x1.10 cnt    2 0.90413220 0.10246047 0.5899279 0.35232307

The Data Set

id <- paste('x', "1.", 1:10, sep="")
set.seed(10)
DF <- data.frame(id, trt=sample(c('cnt', 'tr'), 10, T), work.T1=runif(10),
    play.T1=runif(10), talk.T1=runif(10), total.T1=runif(10),
    work.T2=runif(10), play.T2=runif(10), talk.T2=runif(10), 
    total.T2=runif(10))

Thank you in advance!

EDIT: Something screwy happened when I was using set.seed (certainly an error I did). The actually data above is not the data you'll get if you use set.seed(10). I'm leaving the error for historical accuracy and it really doesn't affect the solutions people gave.

like image 241
Tyler Rinker Avatar asked Mar 13 '12 13:03

Tyler Rinker


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1 Answers

This is pretty close and changing the names of columns should be within your skillset:

reshape(DF, 
       varying=c(work= c(3, 7), play= c(4,8), talk= c(5,9), total= c(6,10) ), 
       direction="long")

EDIT: Adding a version that is almost an exact solution:

reshape(DF, varying=list(work= c(3, 7), play= c(4,8), talk= c(5,9), total= c(6,10) ), 
        v.names=c("Work", "Play", "Talk", "Total"), 
          # that was needed after changed 'varying' arg to a list to allow 'times' 
        direction="long",  
        times=1:2,        # substitutes number for T1 and T2
        timevar="times")  # to name the time col
like image 157
IRTFM Avatar answered Sep 28 '22 22:09

IRTFM