mdplot {limma} | R Documentation

## mdplot

### Description

Creates a mean-difference plot.

### Usage

    mdplot(x, ...)

### Arguments

`x` | numeric `matrix` with at least two columns
`...` | any other arguments are passed to `plot`

### Details

Plots differences vs means for a set of bivariate values. This is useful to contrast expression values for two microarrays.

Note that an MA-plot `plotMA` is a type of mean-difference plot.

### Value

A plot is created on the current graphics device.

### Author(s)

Gordon Smyth

### References

Chambers, J. M., Cleveland, W. S., Kleiner, B., and Tukey, P. A. (1983). Graphical Methods of Data Analysis. Wadsworth (pp. 48-57).

Cleveland, W. S., (1993). Visualizing Data. Hobart Press.

Bland, J. M., and Altman, D. G. (1986). Statistical methods for assessing agreement between two methods of clinical measurement. Lancet i, 307-310.

See also http://www.statsci.org/micrarra/refs/maplots.html

### See Also

An overview of diagnostic functions available in LIMMA is given in 09.Diagnostics.

[Package limma version 2.14.7 Index]