R help - Jun 2007 - Rearranging Capture History Data in R

What code can i use to convert a table like this:

Tag#    Date
1       1
2       1
3       1
4       1
2       2
4       2
1       3
2       3
4       4

Into one like this:

Tag     1     2     3     4 #Date header
1       1     0     0     1
2       1     1     1     0
3       1     0     0     0
4       1     1     0     1

Thanks,


Ben Cox
Research Assistant (M.S.)
Montana Cooperative Fishery Research Unit
301 Lewis Hall
Montana State University
Bozeman, MT 59717
(406)994-6643

date = c(1, 1, 1, 1, 2, 2, 3, 3, 4)
tag = c(1, 2, 3, 4, 2, 4, 1, 2, 4)
table(factor(tag, levels=1:4), factor(date, levels=1:4))

(not sure how you got Tag 1/Date 4 = 1)


On Jun 11, 2007, at 3:11 PM, cox at montana.edu wrote:
> What code can i use to convert a table like this:
>
> Tag#    Date
> 1       1
> 2       1
> 3       1
> 4       1
> 2       2
> 4       2
> 1       3
> 2       3
> 4       4
>
> Into one like this:
>
> Tag     1     2     3     4 #Date header
> 1       1     0     0     1
> 2       1     1     1     0
> 3       1     0     0     0
> 4       1     1     0     1
>
> Thanks,
>
>
> Ben Cox
> Research Assistant (M.S.)
> Montana Cooperative Fishery Research Unit
> 301 Lewis Hall
> Montana State University
> Bozeman, MT 59717
> (406)994-6643
>
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