Hello,
Your dataset seems to have a problem, the first row should the columns'
names. If I'm right,
nms <- levels(dat[[1]])[dat[1,1]]
nms[2] <- levels(dat[[2]])[dat[1,2]]
dat <- dat[-1, ]
names(dat) <- nms
with(dat, table(Env, place))
If I'm wrong,
with(dat, table(V1, V2))
Hope this helps,
Rui Barradas
Em 08-10-2012 13:42, Nico Met escreveu:
Dear all,
Need a help. I would like to count combination of two columns:
structure(list(V1 = structure(c(4L, 1L, 1L, 1L, 1L, 1L, 1L, 1L,
1L, 1L, 1L, 1L, 1L, 2L, 2L, 3L, 3L, 3L, 3L, 3L, 3L, 3L), .Label = c("23",
"55", "67", "Env"), class = "factor"), V2 = structure(c(9L, 7L,
7L, 7L, 2L, 1L, 11L, 11L, 11L, 11L, 5L, 6L, 6L, 3L, 8L, 2L, 1L,
4L, 4L, 10L, 10L, 10L), .Label = c("Ck", "CK", "Dk", "IN", "jk",
"NO", "NW", "PK", "place", "PR", "PT"), class = "factor")), .Names =
c("V1",
"V2"), class = "data.frame", row.names = c(NA, 22L))
For example: how many times 23 appear with NW and then I want to put the
out put as a matrix
NW Ck PT jK NO DK PK IN PR 23 3 55 67
Many thanks in advance
Nico
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