qdapTools (version 1.3.3)

loc_split: Split Data Forms at Specified Locations

Description

Split data forms at specified integer locations.

Usage

loc_split(x, locs, names = NULL, ...)
# S3 method for list
loc_split(x, locs, names = NULL, ...)
# S3 method for data.frame
loc_split(x, locs, names = NULL, ...)
# S3 method for matrix
loc_split(x, locs, names = NULL, ...)
# S3 method for numeric
loc_split(x, locs, names = NULL, ...)
# S3 method for factor
loc_split(x, locs, names = NULL, ...)
# S3 method for character
loc_split(x, locs, names = NULL, ...)
# S3 method for default
loc_split(x, locs, names = NULL, ...)

Arguments

x

A data form (list, vector, data.frame, matrix).

locs

A vector of integer locations to split at. If locs contains the index 1, it will be silently dropped.

names

Optional vector of names to give to the list elements.

…

Ignored.

Value

Returns of list of data forms broken at the locs.

See Also

run_split, split_vector https://github.com/trinker/loc_split_example for practical usage.

Examples

# NOT RUN {
## character
loc_split(LETTERS, c(4, 10, 16))
loc_split(LETTERS, c(4, 10, 16), c("dog", "cat", "chicken", "rabbit"))

## numeric
loc_split(1:100, c(33, 66))

## factor
(p_chng <- head(1 + cumsum(rle(as.character(CO2[["Plant"]]))[[1]]), -1))
loc_split(CO2[["Plant"]], p_chng)

## list
loc_split(as.list(LETTERS), c(4, 10, 16))

## data.frame
(vs_change <- head(1 + cumsum(rle(as.character(mtcars[["vs"]]))[[1]]), -1))
loc_split(mtcars, vs_change)

## matrix
(mat <- matrix(1:50, nrow=10))
loc_split(mat, c(3, 6, 10))
# }

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