Useful r scripts
X: Numeric dataframe where each column is the observations for a given set. (e.g. FC values for treatment ~ gene)
mask: Boolean DF of same dimensions as X. e.g. P-values for FC values < 0.05 mask = Pmatrix<0.05
ggstuff: a single layer to ggplot2. e.g.: "geom_vline(0.05)"
