[R] Question on Counting Factors
daniel.gabrieli at gmail.com
Wed Apr 11 15:21:27 CEST 2012
I hope this is not too trivial, but I've had this recurring problem
and I think there is super easy solution, just not sure what it is.
Please see short example below. I would like to get the frequency
(counts) of all the variables in a single column (that is easy), but I
would also like to return the value 0 for the absence of variables
defined in another column.
animals = matrix(c('cat','tiger','cat','tiger','fish','fish','dog','dog'),ncol=2,
animals = as.data.frame(animals)
# Returns the count for the variables in the first column as
# But I would like to have table(animals$V1) return
cat tiger dog fish
2 2 0 0
Any help is much appreciated.
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