R: Overlay a number of point patterns

mpoint {splancs} | R Documentation

## Overlay a number of point patterns

### Description

Overlay a number of point patterns.

### Usage

    mpoint(...,cpch,add=FALSE,type="p")

### Arguments

`...` | At least one argument consisting of a points data set must be specified.
`cpch` | A vector of characters for plotting symbols
`add` | if `add` is `TRUE` then overlay on an existing plot
`type` | plot data as points if `type="p"`, lines if `type="l"`

### Details

`mpoint` enables several point or polygon datasets to be overlayed. The plot region is calculated so that all the specified datasets fit in the region. The parameter `cpch` specifies the characters to use for each set of points. The default `cpch` consists of the numbers 1 to 9 followed by the uppercase letters A to Z. If `cpch` is shorter than the number of point sets to plot, then it is repeated.

### References

Rowlingson, B. and Diggle, P. 1993 Splancs: spatial point pattern analysis code in S-Plus. Computers and Geosciences, 19, 627-655; the original sources can be accessed at: http://www.maths.lancs.ac.uk/~rowlings/Splancs/. See also Bivand, R. and Gebhardt, A. 2000 Implementing functions for spatial statistical analysis using the R language. Journal of Geographical Systems, 2, 307-317.

### See Also

`pointmap`

[Package splancs version 2.01-40 Index]