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rdetools (version 1.0)

distimage: Distance image

Description

If you've done a model selection with selectmodel, this function can draw you a map, in which the distances of the original label vector and the estimated label vectors are shown. This is done by a filled.contour plot.

Usage

distimage(model, color.palette = terrain.colors,
	  log = TRUE,
	  plottitle = "Distance of Ys",
	  ...)

Arguments

model
list of model selection data as it has been returned by selectmodel. selectmodel must have been called with ydist parameter set to TRUE!
color.palette
color palette function to use, see rainbow
log
leave this TRUE, if the axis of the model parameter should be logarithmically scaled. Set this to FALSE if you want linear scaling.
plottitle
title of the plot
...
additional parameters for filled.contour

References

M. L. Braun, J. M. Buhmann, K. R. Mueller (2008) \_On Relevant Dimensions in Kernel Feature Spaces\_

See Also

selectmodel, modelimage, drawkpc, filled.contour, rainbow

Examples

Run this code
## model selection with RBF-kernel and graphical illustration
## of the distances of the labels
d <- sincdata(100, 0.1) # generate sinc data
# do model selection
m <- selectmodel(d$X, d$y, ydist = TRUE, sigma = logspace(-3, 3, 100))
distimage(m) # distance image

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