Plotting functions for SOM results.
somgrid(xdim = 8, ydim = 6, topo = c("rectangular", "hexagonal"))
# S3 method for somgrid plot(x, type = "p", ...)
# S3 method for SOM plot(x, ...)
dimensions of the grid
the topology of the grid.
an object inheriting from class
somgrid, an object of class
"somgrid", a list with
a two-column matrix giving locations for the grid points.
as in the arguments to
"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
plot of the representative at each grid point.
Venables, W. N. and Ripley, B. D. (2002) Modern Applied Statistics with S. Fourth edition. Springer.