stream (version 1.5-1)

microToMacro: Translate Micro-cluster IDs to Macro-cluster IDs

Description

Returns the assignment of micro-cluster ids to macro-cluster ids for a DSC_Macro object.

Usage

microToMacro(x, micro = NULL)

Value

A vector of the same length as micro with the macro-cluster ids.

Arguments

x

a DSC_Macro object that also contains information about micro-clusters.

micro

A vector with micro-cluster ids. If NULL then the assignments for all micro-clusters in x are returned.

Author

Michael Hahsler

See Also

DSC_Macro

Examples

stream <- DSD_Gaussians(k=3, d=2, noise=0.05, p=c(.2,.4,.6))

# recluster a micro-clusters
micro <- DSC_DStream(gridsize=0.05)
update(micro, stream, 500)

macro <- DSC_Kmeans(k=3)
recluster(macro, micro)

# translate all micro-cluster ids
microToMacro(macro)

# plot some data points in gray
plot(stream, col="gray", cex=.5, xlim=c(0,1), ylim=c(0,1))
# add micro-clusters and use the macro-cluster ids as color and weights as size
points(get_centers(macro, type="micro"),
  col=microToMacro(macro),
  cex=get_weights(macro, type="micro", scale=c(.5,3)))
# add macro-cluster centers (size is weight)
points(get_centers(macro, type="macro"),
  cex = get_weights(macro, type="macro", scale=c(2,5)),
  pch=3,lwd=3, col=1:3)