## Array Extents

## Usage

    dim(x)
    dim(x) <- values

## Value

This function retrieves the vector of extents of the array given as its argument. The second form above is used to shape a vector as an array by specifying its extents.

## See Also

`ncol`, `nrow` and `dimnames`.

## Examples

    # simple versions of nrow and ncol could be defined as follows
    nrow0 <- function(x) dim(x)[1]
    ncol0 <- function(x) dim(x)[2]

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