Graphics for Principal component Analysis

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Description

Graphics for Principal component Analysis

Usage

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## S3 method for class 'acp'
plot(x,i=1,j=2,text=TRUE,label='Composants',col='darkblue',
main='Individuals PCA',variables=TRUE,individual.label=NULL,...)
## S3 method for class 'acp'
biplot(x,i=1,j=2,label='Composants',col='darkblue',length=0.1,
main='Variables PCA',circle=TRUE,...)
plot2(x,pourcent=FALSE,eigen=TRUE,label='Comp.',col='lightgrey',
main='Scree Graph',ylab='Eigen Values')
plotAll(x)

Arguments

x

Result of acp or princomp

i

X axis

j

Y axis

text

a logical value indicating whether we use text or points for plot

pourcent

a logical value indicating whether we use pourcentage of values

eigen

a logical value indicating whether we use eigen values or standard deviation

label

label for X and Y axis

individual.label

labels naming individuals

col

Color of plot

main

Title of graphic

ylab

Y label

length

length of arrows

variables,circle

a logical value indicating whether we display circle or variables

...

cex, pch, and other options; see points.

Value

Graphics:

plot.acp PCA for lines (individuals)

plot.acp PCA for columns (variables)

plot2 Eigen values diagram (Scree Graph)

plotAll Plot both 3 graphs

Author(s)

Antoine Lucas, http://mulcyber.toulouse.inra.fr/projects/amap/

See Also

acpgen,acprob, princomp

Examples

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data(lubisch)
lubisch <- lubisch[,-c(1,8)]
p <- acp(lubisch)
plotAll(p)