On 10/03/2009 04:15 AM, Andrew Spence wrote:
Dear R-help,
First of all, thank you VERY much for any help you have time to offer. I
greatly appreciate it.
I would like to write a function that, given an arbitrary number of factors
from a data frame, tabulates the number of occurrences of eac
try 'reshape':
> require(reshape)
> # add a column to accumulate on
> tmp$inc <- 1
> recast(tmp, f1 + f2 + f3 ~ ., sum)
Using f1, f2, f3 as id variables
f1 f2f3 (all)
1MaleWhite 0-20 3
2MaleWhite 21-40 4
3MaleWhite 41-60 2
4MaleWhite 61
lling the function, does this produce what you want?
with(tmp, test(f1, f2, f3))
## END R SAMPLE CODE
Best Regards,
Erik Iverson
> -Original Message-
> From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org]
> On Behalf Of Andrew Spence
> Sent: Friday, October 0
Dear R-help,
First of all, thank you VERY much for any help you have time to offer. I
greatly appreciate it.
I would like to write a function that, given an arbitrary number of factors
from a data frame, tabulates the number of occurrences of each unique
combination of the factors. Cleary,
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