Fast Truncated PCA on Top Highly Variable Features
Usage
fast_pca(mat, n_pcs = 20, n_hvg = 2000, scale = FALSE)
Arguments
- mat
Matrix or dgCMatrix (cells x features).
- n_pcs
Number of principal components. Default 20.
- n_hvg
Number of top highly variable genes to retain. Default 2000.
- scale
Logical, whether to scale features. Default FALSE.
Value
Matrix of cell principal component embeddings (cells x n_pcs).
