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affy (version 1.50.0)

mva.pairs: M vs. A Matrix

Description

A matrix of M vs. A plots is produced. Plots are made on the upper triangle and the IQR of the Ms are displayed in the lower triangle

Usage

mva.pairs(x, labels=colnames(x), log.it=TRUE,span=2/3,family.loess="gaussian", digits=3,line.col=2,main="MVA plot",cex=2,...)

Arguments

x
a matrix containing the chip data in the columns.
labels
the names of the variables.
log.it
logical. If TRUE, uses log scale.
span
span to be used for loess fit.
family.loess
"gaussian" or "symmetric" as in loess.
digits
number of digits to use in the display of IQR.
line.col
color of the loess line.
main
an overall title for the plot.
cex
size for text.
...
graphical parameters can be given as arguments to mva.plot

See Also

pairs

Examples

Run this code
    x <- matrix(rnorm(4000),1000,4)
    x[,1] <- x[,1]^2
    dimnames(x) <- list(NULL,c("chip 1","chip 2","chip 3","chip 4"))
    mva.pairs(x,log=FALSE,main="example")

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