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aroma.light (version 3.2.0)

plotMvsA: Plot log-ratios vs log-intensities

Description

Plot log-ratios vs log-intensities.

Usage

"plotMvsA"(X, Alab="A", Mlab="M", Alim=c(0, 16), Mlim=c(-1, 1) * diff(Alim) * aspectRatio, aspectRatio=1, pch=".", ..., add=FALSE)

Arguments

X
Nx2 matrix with two channels and N observations.
Alab,Mlab
Labels on the x and y axes.
Alim,Mlim
Plot range on the A and M axes.
aspectRatio
Aspect ratio between Mlim and Alim.
pch
Plot symbol used.
...
Additional arguments accepted by points.
add
If TRUE, data points are plotted in the current plot, otherwise a new plot is created.

Value

Returns nothing.

Details

Red channel is assumed to be in column one and green in column two. Log-ratio are calculated taking channel one over channel two.