plotmat(matrix, textcolour, gridcolour, fontsize)
plotmat(matrix, textcolour, gridcolour, fontsize) displays the matrix
matrix on the current figure. The textcolour and gridcolour
arguments control the colours of the numbers and grid labels respectively and
should be follow the usual Matlab specification.
The fontsize should be an integer.
conffig, demmlp2Copyright (c) Christopher M Bishop, Ian T Nabney (1996, 1997)