Split Iterator
Returns an iterator that divides the data in the vector x
into the groups defined by f.
isplit(x, f, drop=FALSE, ...)
x |
vector or data frame of values to be split into groups. |
f |
a factor or list of factors used to categorize |
drop |
logical indicating if levels that do not occur should be dropped. |
... |
current ignored. |
The split iterator.
x <- rnorm(200)
f <- factor(sample(1:10, length(x), replace=TRUE))
it <- isplit(x, f)
expected <- split(x, f)
for (i in expected) {
actual <- nextElem(it)
stopifnot(actual$value == i)
}Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.