Factorial Planes Showing the Classes

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Description

For objects of class FactoClass it graphs a factorial plane showing the center of gravity of the cluster, and identifying with colors the cluster to which each element belongs.

Usage

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plotFactoClass(FC,x=1,y=2,xlim=NULL,ylim=NULL,rotx=FALSE,roty=FALSE,
                roweti=row.names(dudi$li),coleti=row.names(dudi$co),
                titre=NULL,axislabel=TRUE,col.row=1:FC$k, 
                col.col="blue",cex=0.8,cex.row=0.8,cex.col=0.8,
                all.point=TRUE,Trow=TRUE,Tcol=TRUE,cframe=1.2,ucal=0,
                cex.global=1,infaxes="out",
                nclus=paste("cl", 1:FC$k, sep=""),
                cex.clu=cex.row,cstar=1 )

Arguments

FC

object of class FactoClass.

x

number indentifying the factor to be used as horizontal axis. Default x=1

y

number indentifying the factor to be used as vertical axis. Default y=2

xlim

the x limits (x1, x2) of the plot

ylim

the y limits of the plot

rotx

TRUE if you want change the sign of the horizontal coordinates (default FALSE).

roty

TRUE if you want change the sign of the vertical coordinates (default FALSE).

roweti

selected row points for the graphic. Default all points.

coleti

selected column points for the graphic. Default all points.

titre

graphics title.

axislabel

if it is TRUE the axis information is written.

col.row

color for row points and row labels. Default 1:FC$k.

col.col

color for column points and column labels. Default "grey55".

cex

global scale for the labels. Default cex=0.8.

cex.row

scale for row points and row labels. Default cex.row=0.8.

cex.col

scale for column points and column labels. Default cex.col=0.8.

cex.clu

scale for cluster points and cluster labels. (default cex.row).

all.point

if if is TRUE, all points are outlined. Default all.point=TRUE.

Trow

if it is TRUE the row points are outlined. Default TRUE.

Tcol

if it is TRUE the column points are outlined. Default TRUE.

nclus

labels for the clusters (default cl1, cl2, ...

cframe

scale for graphics limits

ucal

quality Representation Threshold in the plane. Default ucal=0

cex.global

scale for the label sizes

infaxes

place to put the axes information: "out","in","no". Default infaxes="out". If infaxes="out" the graphic is similar to FactoMineR graphics, otherwise the style is similar to the one in ade4, without axes information when infaxes="no"

cstar

length of the rays between the centroids of the classes and their points

Details

It draws the factorial plane with the clusters. Only for objects FactoClass see FactoClass. The factorial plane is drawn with planfac and the classes are projected with s.class of ade4

Value

It draws the factorial plane x, y using $co, $li of the object of class FactoClass. If ucal > 0, the function inertia.dudi is used to calculate the quality of representation in the plane.

Author(s)

Campo ElĂ­as Pardo cepardot@unal.edu.co Pedro Cesar del Campo pcdelcampon@unal.edu.co,

Examples

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data(Bogota)
Bog.act <- Bogota[-1]
Bog.ilu <- Bogota[ 1]

FC.Bogota<-FactoClass(Bog.act, dudi.coa,Bog.ilu,nf=2,nfcl=5,k.clust=5,scanFC=FALSE)

plotFactoClass(FC.Bogota,titre="First Factorial Plane from the SCA of Bogota's Blocks",
     col.row=c("maroon2","orchid4","darkgoldenrod2","dark red","aquamarine4"))