list with $annot, $abund for initial/raw abundance values and $quant with final normalized quantitations, or returns data.frame with annot and quant if separateAnnot=FALSE
Arguments
dat
(numeric) main data (may contain NA)
grp
(character or factor) grouping of columns of 'dat', eg replicate association
grp2
(character or factor) aadditional/secondary grouping of columns of 'dat'
col
(character or integer) use custom colors, see also par
pch
(integer) symbol to mark group-center (see also par)
tit
(character) custom title
cex
(numeric) expansion factor for text (see also par)