PlotBiplotClusters function

Plot clusters on a biplot.

Highlights several groups or clusters on a biplot representation.

PlotBiplotClusters(A, Groups = ones(c(nrow(A), 1)), TypeClus = "st",
                 ClusterColors = NULL, ClusterNames = NULL, centers =
                 TRUE, ClustConf = 1, Legend = FALSE, LegendPos =
                 "topright", CexClustCenters = 1,  ...)

Arguments

• A: Coordinates of the points in the scattergram
• Groups: Factor defining the groups to be highlited
• TypeClus: Type of representation of the clusters. For the moment just a convex hull but in the future ellipses and stars will be added.
• ClusterColors: A vector of colors with as many elements as clusters. If NULL the function slects the raibow colors.
• ClusterNames: A vector of names with as many elements as clusters.
• centers: Logical variable to control if centres of the clusters are plotted
• ClustConf: Percent of points included in the cluster. only the ClusConf percent of the points nearest to the center will be used to calculate the cluster
• Legend: Should a legend be plotted
• LegendPos: Position of the legend.
• CexClustCenters: Size of the cluster centres.
• ...: Any other graphical parameters

Details

The clusters to plot should be added to the biplot object using the function AddCluster2Biplot.

Returns

It takes effects on a plot

Author(s)

Jose Luis Vicente Villardon

See Also

AddCluster2Biplot

Examples

data(iris)
bip=PCA.Biplot(iris[,1:4])
bip=AddCluster2Biplot(bip, NGroups=3, ClusterType="us", Groups=iris[,5], Original=FALSE)
plot(bip, PlotClus = TRUE)