I have a data set in a table object, with 11 columns. The first column is a string, corresponding to a group of orthologous genes (basically, genes that do the same thing in different species). The other ten columns are numbers that describe how much that gene, in species 1 or 2, is being expressed at a given point in time in this species - let's say we've got columns for species 1 timepoints 1-5, and species 2 timepoints 1-5.
I want to perform a PCA on it, but I want to color the data on it by column, such that I can figure out which species/timepoint a given datapoint belongs to.
Is this possible, and if so, how can I do it?