Ploth function

Changes the appearance of cluster dendrogram

Modifies several aspects of the cluster dendrogram

Ploth(hclust, labels=hclust[["labels"]], lab.font=1, lab.col=1, col=1,
   pch.cex=1, pch=NA, bg=0, col.edges=FALSE, hang=-1, ...)

Arguments

• hclust: Hclust object
• labels: Labels
• lab.font: Label font
• lab.col: Label colors
• col: Colors of edges and points
• pch.cex: Scale of points
• pch: Point types
• bg: Points backgrounds
• col.edges: Colorize edges?
• hang: Makes leaves hang, see plot.hclust(); -1 is default here whereas 0.1 is default for 'hclust'
• ...: Further arguments to plot.dendrogram()

Details

Changes the appearance of cluster dendrogram. If labels are long, you might need to modify the plot margins.

Please take into account that supplied labels are meant to be in their initial order, not in order of their appearance on the dendrogram.

Ploth() does not change the text size of labels, please use Tctext() and Tcoords() for this (and other) purposes.

Author(s)

Alexey Shipunov

See Also

Tcoords

Examples

iris.dist <- dist(iris[, 1:4], method="manhattan")
iris.hclust <- hclust(iris.dist)
Ploth(iris.hclust, col=as.numeric(iris[, 5]), pch=16, col.edges=TRUE, horiz=TRUE,
 leaflab="none")
legend("topleft", fill=1:nlevels(iris[, 5]), legend=levels(iris[, 5]))

Ploth(hclust(UScitiesD, "ward.D2"), labels=abbreviate(attr(UScitiesD, "Labels")),
 lab.col=c(1, rep(2, 9)), lab.font=c(2, rep(1, 9)), hang=0.1)