screeplot.epplab: Creating a Screeplot for an epplab Object

In fischuu/REPPlab: R Interface to 'EPP-Lab', a Java Program for Exploratory Projection Pursuit

Creating a Screeplot for an epplab Object

Description

Plots the objective criteria of an epplab object versus the simulation runs.

Usage

## S3 method for class 'epplab'
screeplot(x, type = "lines", which = 1:10, main = "",
  ylab = "Objective criterion", xlab = "Simulation run", ...)

Arguments

x	Object of class epplab.
type	Type of screeplot, values are "barplot" and "lines"
which	Which simulation runs should be taken into account
main	Main title of the plot
ylab	Y-axis label
xlab	X-axis label
...	Graphical parameters, see also par()

Details

The option which can restrict the output to certain simulation runs. In case of many simulations, this might improve the readability. The barplot option is often not meaningful, because the objective criteria are usually large and bars begin by default at zero.

Author(s)

Daniel Fischer

Examples

library(tourr)
data(olive)
res <- EPPlab(olive[,3:10],PPalg="PSO",PPindex="KurtosisMin",n.simu=10, maxiter=20)
screeplot(res)

# Pretty useless:
screeplot(res,type="barplot")

screeplot(res,which=1:5)

fischuu/REPPlab documentation built on April 19, 2023, 9:52 a.m.