PrinComp_cpp {scGPS} | R Documentation

## Principal component analysis

### Description

This function provides significant speed gain if the input matrix is big

### Usage

    PrinComp_cpp(X)

### Arguments

`X` | an R matrix (expression matrix), rows are genes, columns are cells

### Value

a list with three list pca lists

### Examples

    mat_test <-matrix(rnbinom(1000000,mu=0.01, size=10),nrow=1000)
    #library(microbenchmark)
    #microbenchmark(PrinComp_cpp(mat_test), prcomp(mat_test), times=3)

[Package scGPS version 1.8.0 Index]