downsampleByVar: Downsample an input data-frame or matrix based on variance.

In scDataviz: scDataviz: single cell dataviz and downstream analyses

Description

Downsample an input data-frame or matrix based on variance.

Usage

downsampleByVar(x, varianceFactor = 0.1, verbose = TRUE)

Arguments

x	Input data-matrix.
varianceFactor	Removes this proportion of variables based on lesser variance.
verbose	Boolean (TRUE / FALSE) to print messages to console or not.

Details

Downsample an input data-frame or matrix based on variance.

Value

A matrix object.

Author(s)

Kevin Blighe <[e-mail]>

Examples

# create random data that follows a negative binomial
mat <- jitter(matrix(
  MASS::rnegbin(rexp(1000, rate=.1), theta = 4.5),
  ncol = 20))

downsampleByVar(mat, varianceFactor = 0.1)

scDataviz documentation built on Nov. 8, 2020, 4:58 p.m.