1 | mat2grp(m, coln)
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m |
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coln |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 | ##---- Should be DIRECTLY executable !! ----
##-- ==> Define data, use random,
##-- or do help(data=index) for the standard data sets.
## The function is currently defined as
function (m, coln)
{
if (!is.null(dim(m)))
m = as.matrix(m)
if (!is.matrix(m))
stop("Data must be stored in a matrix or data frame")
if (length(coln) != 1)
stop("The argument coln must have length 1")
x <- list()
flagna = !is.na(m[, coln])
m = m[flagna, ]
grpn <- sort(unique(m[, coln]))
for (ig in 1:length(grpn)) {
flag <- (m[, coln] == grpn[ig])
x[[ig]] <- m[flag, ]
}
print("Group Levels:")
print(grpn)
x
}
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