plotLeverage: Function to plot leverage scores

In rCUR: CUR decomposition package

Description

Function to plot the individual values and uniform level of leverage scores. The most influental features may be higlighted.

Usage

plotLeverage(x, C=TRUE, mplr=1000, top.n=100, 
  top.col='red', top.pch=16, ul.col='red', ul.lty=2, ...)

Arguments

x	object of class CURobj-class
C	logical, if it is TRUE, then calculated the rank for the leverage scores belongs to columns, if FALSE, then to rows
mplr	multiplier of leverage scores
top.n	number of highlighting items from top of leverage score list
top.col	color of highligting points
top.pch	pch of highligting points, see par()
ul.col	color of the line of leverage score uniform level
ul.lty	line type of leverage score uniform level
...	further graphical parameters of function plot()

References

Mahoney M. W. and Drineas P. (2009) CUR matrix decompositions for improved data analysis. PNAS, 106(3):697-702

Andras Bodor, Istvan Csabai, Michael W Mahoney and Norbert Solymosi rCUR:an R package for CUR matrix decomposition BMC Bioinformatics 2012, 13:103 doi:10.1186/1471-2105-13-103

Examples

data(STTm)
res <- CUR(STTm, 31, 12, 3)
plotLeverage(res, C=FALSE, top.n=10, las=1)

Example output

Loading required package: MASS
Loading required package: Matrix
Loading required package: lattice

rCUR documentation built on May 2, 2019, 2:21 a.m.