mvhist (version 1.2)

mvhistMisc: Miscellaneous routines for multivariate histograms

Description

Utility functions for multivariate histograms

Usage

TallyHrep( x, H, report="summary" )  
DrawPillars( S, height, shift=rep(0.0,3), ... )
HrepCones( S )

Value

TallyHrep returns a list containing the number of data points in each simplex.

DrawPillars draws 3d pillars/columns to show histogram height.

HrepCones an (m x (d+2) x ncones) array H, with H[,,k] giving the H-representation of the k-th cone.

Arguments

x

data in an (n x d) matrix; rows are d-dimensional data vectors

S

(vps x d x nS) array of simplices in V representation, see V2Hrep

H

array of simplices in H representation, see V2Hrep

report

what information to return for tally; one of "summary", "all", "none"

height

height of the pillars

shift

(x,y,z) shift of the pillars

...

Optional arguments to plot, e.g. color="red", etc.

Details

Internal functions for multivariate histograms.

TallyHrep tallies the number of data points in each simplex of the H representation.

DrawPillars plot 3d pillars/columns to show histogram height.

HrepCones computes an (m x (d+2) x ncones) array H, with H[,,k] giving the H-representation of the k-th cone,