Define colors based on a covariate of an RccSet object
Usage
colByCovar(pdata, covar)
Arguments
pdata
pData() of an RccSet object
covar
character, colname in the pdata used to stratify (color) data
Value
A list of length 2, with [["color"]] being a character vector of colors (one color for each level of covar) of length=number of observations
and [["legend"]] providing the levels of covar to map colors to covar