addErrorBars: Add error bars to a barplot.
Description
This function adds error bars to an existing barplot.
Usage
addErrorBars(means, errors, two.side = FALSE)
Arguments
- means
vector of means plotted in the barplot
- errors
vector of standard errors (signle positive values) to be plotted.
- two.side
should the error bars be two-sided?
Author
Steve Horvath and Peter Langfelder