plotes (Neural Network Toolbox)

Plot the error surface of a single input neuron

plotes(wv,bv,es,v)

plotes(WV,BV,ES,V) takes these arguments,

WV - 1 x N row vector of values of W.

BV - 1 x M row vector of values of B.

ES - M x N matrix of error vectors.

V - View, default = [-37.5, 30].

and plots the error surface with a contour underneath.

Calculate the error surface ES with errsurf.

Examples

p = [3 2];
t = [0.4 0.8];
wv = -4:0.4:4; bv = wv;
ES = errsurf(p,t,wv,bv,'logsig');
plotes(wv,bv,ES,[60 30])