Neural Network Toolbox

plotperf

Plot network performance

Syntax

plotperf(TR,goal,name,epoch)

Description

plotperf(TR,goal,name,epoch) takes these inputs,

• TR - Training record returned by train.

  goal - Performance goal, default = NaN.

  name - Training function name, default = ''.

  epoch - Number of epochs, default = length of training record.

and plots the training performance, and if available, the performance goal, validation performance, and test performance.

Examples

Here are eight input values P and associated targets T, plus a like number of validation inputs VV.P and targets VV.T.

• P = 1:8; T = sin(P);
  VV.P = P; VV.T = T+rand(1,8)*0.1;
  

The code below creates a network and trains it on this problem.

• net = newff(minmax(P),[4 1],{'tansig','tansig'});
  [net,tr] = train(net,P,T,[],[],VV);
  

During training plotperf was called to display the training record. You can also call plotperf directly with the final training record TR, as shown below.

• plotperf(tr)
  

plotpc

plotpv