Run Fast PCA dimensionality reduction
PCAFast(object, pc.genes = NULL, do.print = TRUE, pcs.print = 5,
pcs.compute = 20, genes.print = 30, ...)
Seurat object
Genes to use as input for PCA. Default is object@var.genes
Print the top genes associated with high/low loadings for the PCs
Number of PCs to print genes for
Total Number of PCs to compute and store
Number of genes to print for each PC
Additional arguments to be passed to prcomp
Returns Seurat object with an PCA embedding (object@pca.rot) and gene projection matrix (object@pca.x). The PCA object itself is stored in object@pca.obj[[1]]