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DESeq (version 1.24.0)

plotMA: Makes a so-called "MA-plot"

Description

A simple helper function that makes a so-called "MA-plot", i.e. a scatter plot of logarithmic fold changes (on the y-axis) versus the mean of normalized counts (on the x-axis).

Usage

plotMA(x, ylim, col = ifelse(x$padj>=0.1, "gray32", "red3"), linecol = "#ff000080", xlab = "mean of normalized counts", ylab = expression(log[2]~fold~change), log = "x", cex=0.45, ...)

Arguments

x
a data.frame with columns baseMean, and log2FoldChange. In addition, if the argument col is left at its default, this data.frame also needs to have a column named padj.
linecol
colour used for the horizontal line at y=0.
ylim, col, xlab, ylab, log, cex, ...
arguments that are passed on to plot.default.

Value

The function is called for its side effect.

Details

This is a trivial helper function. Do not be afraid to edit and modify it to your needs.

Examples

Run this code
## see vignette

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