How to plot network performance?

Question

john karli 2022-3-4

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1663414-how-to-plot-network-performance

回答： Mahesh Taparia 2022-3-9

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

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

yanqi liu 2022-3-7

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1663414-how-to-plot-network-performance#answer_911544

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)

2 个评论
显示无隐藏无

john karli 2022-3-7

what is the targets and outputs in plotroc?

yanqi liu 2022-3-7

targets：real label for test data

outputs：predict label for test data

请先登录，再进行评论。

Answer 2

Mahesh Taparia 2022-3-9

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1663414-how-to-plot-network-performance#answer_913859

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!