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I have a vector of integer e.g. c(1,2,0,3,4) and I want 0 to be a delimiter and get list(c(1,2), c(3,4)). Is there any libary function I can use?
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Split a vector into sub-vectors of size n in C++We start by determining the total number of sub-vectors of size n formed from the input vector. Then we iterate the given vector, and in each iteration of the loop, we process the next set of n elements and copy it to a new vector using the std::copy algorithm.
You can use the split() method of String class from JDK to split a String based on a delimiter e.g. splitting a comma-separated String on a comma, breaking a pipe-delimited String on a pipe, or splitting a pipe-delimited String on a pipe.
Note that splitting into single characters can be done via split = character(0) or split = "" ; the two are equivalent.
No library function I know of but you can write your own:
split.vec <- function(vec, sep = 0) {
is.sep <- vec == sep
split(vec[!is.sep], cumsum(is.sep)[!is.sep])
}
split.vec(c(1,2,0,3,4), 0)
# $`0`
# [1] 1 2
#
# $`1`
# [1] 3 4
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