[ ] Less "wall of code"; move comments into text and split up code chunks into sections.
[ ] Remove extraneous code in comments.
[ ] No tidyverse code.
[ ] Update function calls, e.g., trendVar/decomposeVar to modelGeneVar.
[ ] Limit your pedagogy. No need for duplicated findMarkers() calls.
[ ] Less aggressive downsampling, you want to show that the pipeline is scalable. Suggest only downsampling to 100000 cells, and see if you can coerce to a sparse matrix instead.
For @robertamezquita:
trendVar/decomposeVartomodelGeneVar.findMarkers()calls.