cor_sparse: Find the Pearson correlation of a sparse matrix efficiently

Description Usage Arguments Source

View source: R/cor_sparse.R

Description

Find the Pearson correlation of a sparse matrix. For large sparse matrix this is more efficient in time and memory than cor(as.matrix(x)). Note that it does not currently work on simple_triplet_matrix objects.

Usage

1

Arguments

x

A matrix, potentially a sparse matrix such as a "dgTMatrix" object

Source

This code comes from mike on this Stack Overflow answer: http://stackoverflow.com/a/9626089/712603.


widyr documentation built on April 14, 2020, 6:16 p.m.