clst (version 1.20.0)

plotDistances: Visualize results of link{findThreshold}

Description

The functions plotDistances and plotMutinfo are used to visualize the distance threshold calculated by findThreshold in the context of pairwise distances among objects in the reference set.

Usage

plotDistances(distances, D = NA, interval = NA, ylab = "distances", ...)
plotMutinfo(breaks, D = NA, interval = NA, xlab = "distance", ylab = "mutual information", ...)

Arguments

distances

The $distances element of the output value of findThreshold

breaks

The $breaks element of the output value of findThreshold

D

The distance threshold

interval

The range of values over which candidiate values of PMMI are evaluated.

xlab

Label the x axis of the plot.

ylab

Label the y axis of the plot.

...

Additional arguments are passed to bwplot (plotDistances) or xyplot

Value

Returns a lattice grid object.

Details

plotDistances produces a box-and-whisker plot contrasting within- and between-group distances. plotMutinfo produces a plot of cutpoints vs mutual information scores.

See Also

findThreshold

Examples

data(iris)
dmat <- as.matrix(dist(iris[,1:4], method="euclidean"))
groups <- iris$Species
thresh <- findThreshold(dmat, groups)
do.call(plotDistances, thresh)
do.call(plotMutinfo, thresh)