transformBarycentric: Conversion to barycentric coordinates

In Zouter/triwise: Gene expression changes in three biological conditions

Description

Converts the expression matrix containing three biological conditions to barycentric coordinates, reducing its dimensionality by one while retaining information of differential expression.

Usage

transformBarycentric(E, transfomatrix = NULL)

Arguments

E	Expression matrix
transfomatrix	NULL (default) or a numeric matrix containing the transformation matrix

Value

Dataframe containing for every original point its new coordinates in 'd-1' dimensions

Examples

Eoi = matrix(rnorm(1000*3, sd=0.5), 1000, 3, dimnames=list(1:1000, c(1,2,3)))
Eoi[1:100,1] = Eoi[1:100,1] + 1
barycoords = transformBarycentric(Eoi)
hist(barycoords$angle)

Zouter/triwise documentation built on May 10, 2019, 1:59 a.m.