R: Unwrap an array, matrix or a vector to an array of more...

unwrap.array {R.utils}

R Documentation

Unwrap an array, matrix or a vector to an array of more dimensions

Description

Unwrap an array, matrix or a vector to an array of more dimensions. This is done by splitting up each dimension into several dimension based on the names of that dimension.

Usage

## S3 method for class 'array'
unwrap(x, split=rep("[.]", length(dim(x))), drop=FALSE, ...)

Arguments

`x`	An `array` or a `matrix`.
`split`	A `list` or a `character` `vector`. If a `list`, it should contain `function`s that takes a `character` `vector` as the first argument and optional `...` arguments. Each function should split the `vector` into a `list` of same length and where all elements contains the same number of parts. If a `character` `vector`, each element `split[i]` is replaced by a `function` call `function(names, ...) strsplit(names, split=split[i])`.
`drop`	If `TRUE`, dimensions of of length one are dropped, otherwise not.
`...`	Arguments passed to the `split` `function`s.

Details

Although not tested thoroughly, unwrap() should be the inverse of wrap() such that identical(unwrap(wrap(x)), x) holds.

Value

Returns an array.

Author(s)

Henrik Bengtsson

Examples

## Not run: See ?wrap.array for an example

[Package R.utils version 2.5.0 Index]