How to plot network performance?

I am trying to plot the network performance using following code

[net2,tr] = trainNetwork(augimdsTrain,lgraph,options);

figure
plot(tr.TrainingLoss,'b-')
hold on
x = 1 : length(tr.ValidationLoss);
y = tr.ValidationLoss;
idx = ~any(isnan(y),1);
plot(x(idx),y(idx),'--k','Marker','.','MarkerSize' ,12);
plotperf(tr)

but got the following error

Unrecognized field name "num_epochs".

Error in plotperform>update_plot (line 258)
  numEpochs = tr.num_epochs;

Error in plotperform (line 109)
      plotData = update_plot(param,fig,plotData,update_args{:});
      
      

my tr variable have

>> tr

tr = 

  struct with fields:

               TrainingLoss: [1×9187 double]
           TrainingAccuracy: [1×9187 double]
             ValidationLoss: [1×9187 double]
         ValidationAccuracy: [1×9187 double]
              BaseLearnRate: [1×9187 double]
        FinalValidationLoss: 0.0322
    FinalValidationAccuracy: 99.6214

Answer 1

[yanqi liu]

PLOTPERF Plot network performance.

the tr get by train not trainNetwork，so may be should plot perf by self，such as use plotroc(targets,outputs)

[john karli]

what is the targets and outputs in plotroc?

[yanqi liu]

targets：real label for test data

outputs：predict label for test data

Answer 2

[Mahesh Taparia]

Hi

You can select the 'Plots' name value pair of trainingOptions function to 'training-progress' and then train the network. You will be able to see the training plot, and you can export and save that. For more information, you can refer this documentation.

Hope it helps!