R: Combine Several Factors

cat.factor {spatstat.utils} | R Documentation

## Combine Several Factors

### Description

Combine (concatenate) several factor objects, to produce a factor.

### Usage

    cat.factor(...)

### Arguments

`...` | Any number of arguments. Each argument should be a factor, or will be converted to a factor.

### Details

The arguments `...` are concatenated as they would be using `c()` or `cat()`, except that factor levels are retained and merged correctly. See the Examples.

### Value

A factor, whose length is the sum of the lengths of all arguments. The levels of the resulting factor are the union of the levels of the arguments.

### Author(s)

Rolf Turner r.turner@auckland.ac.nz.

### See Also

`c`.

### Examples

       f <- factor(letters[1:3])
       g <- factor(letters[3:5])
       f
       g
       cat(f,g)
       c(f,g)
       cat.factor(f, g)

[Package spatstat.utils version 1.13-0 Index]