unique_labels will generate a dataframe with color and
plotting character specification out of a sample table definition.
Usage
unique_labels(sam = NULL, g = NULL)
Value
Dataframe with group levels names and their color and plotting character specification.
Arguments
sam
Sample table.
g
Either column name from sam containing factor column or factor of same length as sam.
Details
If a color/symbol specification exists for a sample set containing
replicate groups this function will help in retrieving this information
per group which is useful in boxplot or legend functions (cf. examples).