somgrid {class}R Documentation

Plot SOM Fits


Plotting functions for SOM results.


somgrid(xdim = 8, ydim = 6, topo = c("rectangular", "hexagonal"))

## S3 method for class 'somgrid':
plot(x, type = "p", ...)

## S3 method for class 'SOM':
plot(x, ...)


xdim, ydim dimensions of the grid
topo the topology of the grid.
x an object inheriting from class "somgrid" or "SOM".
type, ... graphical parameters.


The class "somgrid" records the coordinates of the grid to be used for (batch or on-line) SOM: this has a plot method.

The plot method for class "SOM" plots a stars plot of the representative at each grid point.


For somgrid, an object of class "somgrid", a list with components

pts a two-column matrix giving locations for the grid points.
xdim, ydim, topo as in the arguments to somgrid.


Venables, W. N. and Ripley, B. D. (2002) Modern Applied Statistics with S. Fourth edition. Springer.

See Also

batchSOM, SOM

[Package class version 7.2-33 Index]