dim.codingsystem: Dimensions of an Object
In danielruss/socR: Useful functions for working with occupation coding

dim.codingsystem

R Documentation

Dimensions of an Object

Description

Retrieve or set the dimension of an object.

Usage

## S3 method for class 'codingsystem'
dim(x)

Arguments

`x`	an R object, for example a matrix, array or data frame.

Details

The functions dim and dim<- are internal generic primitive functions.

dim has a method for data.frames, which returns the lengths of the row.names attribute of x and of x (as the numbers of rows and columns respectively).

Value

For an array (and hence in particular, for a matrix) dim retrieves the dim attribute of the object. It is NULL or a vector of mode integer.

The replacement method changes the "dim" attribute (provided the new value is compatible) and removes any "dimnames" and "names" attributes.

References

Becker, R. A., Chambers, J. M. and Wilks, A. R. (1988) The New S Language. Wadsworth & Brooks/Cole.

Examples

x <- 1:12 ; dim(x) <- c(3,4)
x

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

danielruss/socR documentation built on Dec. 9, 2024, 7:32 p.m.