Issue in Vignette NMF Visualization

[parkerstevenson]

In ref to:

projectR/vignettes/projectR.Rmd

Line 205 in d6ad9fd

pNMF2ESepiGen4c1l <- ggplot(dNMF2ESepi, aes(x=X1, y=X2, colour=Condition)) +

Objects 'X1' and 'X2' entered in aes(x='X1', y='X2') not found -- perhaps meant to be PC1 and PC2?
Additionally, actual ggplot object from this line of code not included in the vignette.