Differential abundance testing and bulk/pseudobulk deconvolution in SCOP — RunProportionTest, RunPermutation, RunMilo, RunscCODA, RunPropeller for "did this cell type change proportion between conditions"; RunDeconvolution, RunCIBERSORT, RunESTIMATE for "what cell types make up this bulk sample". Covers picking an abundance method from the experimental design and why that choice changes the conclusion. Spatial spot deconvolution is in scop-spatial; differential expression is in scop-de-enrich.