maText {marray} | R Documentation

## Highlight points on a plot

### Description

This function may be used to highlight a subset of points on an existing plot, such as a plot produced by `plot`, `maPlot`, or `maPlot.func`.

### Usage

    maText(subset=NULL, labels=as.character(1:length(subset)), ...)

### Arguments

`subset` | A "logical" or "numeric" vector indicating the subset of points to highlight.
`labels` | One or more character strings or expressions specifying the text to be written.
`...` | Optional graphical parameters, see `par`.

### Value

A function with bindings for `subset`, `labels`, and `...`. This latter function takes as arguments `x` and `y`, the absissa and ordinates of points on the plot.

### Author(s)

Sandrine Dudoit, http://www.stat.berkeley.edu/~sandrine.

### References

S. Dudoit and Y. H. Yang. (2002). Bioconductor R packages for exploratory analysis and normalization of cDNA microarray data. In G. Parmigiani, E. S. Garrett, R. A. Irizarry and S. L. Zeger, editors, The Analysis of Gene Expression Data: Methods and Software, Springer, New York.

### See Also

`text`, `maPlot`, `maPlot.func`.

### Examples

    # See examples for maPlot.

[Package marray version 1.62.0 Index]