How to calculate MAPE, MAE and SD for LRN neural networl

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Shaheer Ansari 2020-11-12

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https://ww2.mathworks.cn/matlabcentral/answers/645138-how-to-calculate-mape-mae-and-sd-for-lrn-neural-networl

评论： Shaheer Ansari 2021-3-20

Dear all,

I am currently using LRN neural network for the prediction and needs to calculate performance indices like MAPE, MAE and SD. As mentioned below, i am trying to calculate from the given formula but i am getting the value in double which is undesirable as the value need to be in an integer form although i am getting the value of other performnance indices like MSE and RMSE in integrer form. Please assist in this regard

lrn_net = layrecnet(1,10);

lrn_net.trainFcn = 'trainlm';

lrn_net.trainParam.show = 5;

lrn_net.trainParam.epochs = 500;

lrn_net = train(lrn_net,data_train,target_train);

y = lrn_net(data_test);

performance = perform(lrn_net,target_test, y)

RMSE = sqrt(performance)

MSE = mse(lrn_net,target_test, y)

MAPE=(sum(abs((y-target_test)./(y)))./length(target_test))*100

MAE=(sum(abs(y-target_test))./length(target_test))*100

SD=(std(y-target_test))*100