How to simulate trained networks?

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Yanuar Rizki Pahlevi
评论： Yanuar Rizki Pahlevi 2020-11-11
Hi guys, I am trying to feed my trained networks with some data. I want to make a plot from its output
clear;
clc;
load network1
layers_encode(1)=network1.Layers(1);
layers_encode(2)=network1.Layers(2);
layers_encode(3)=network1.Layers(3);
layers_encode(4)=network1.Layers(4);
layers_encode(5)=network1.Layers(5);
layers_encode(6)=regressionLayer;
net_encode=assembleNetwork(layers_encode);
[xTrain, tTrain, xValid, tValid, xTest, tTest] = LoadMNIST(3);
xTrain= mat2gray(reshape(xTrain, [28*28 50000]));
inputs=xTrain(:,1:1000);
nInput=size(inputs,2);
[Y]=sim(net_encode, inputs);
scatterplot(Y) %i'd like to compare the input and the output with scatterplot
scatterplot(inputs)
but I cannot get the output.
i tried using [Y]=sim(net,x) but matlab gives 'model' parameter must be a character vector
I read this https://www.mathworks.com/help/deeplearning/ref/sim.html, and tried
y=net_code(inputs), matlab gives Array indices must be positive integers or logical values.
anybody knows what should I do?

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回答（1 个）

Shraddha Jain
Shraddha Jain 2020-11-11
Hi Yanuar,
I understand that you are facing issues while performing regression on input images using the method,
Y = sim(net_encode, inputs)
However, I am not able to reproduce the error at my end. For in-depth understanding of the issue, could you share the network1 or the details of it.
Meanwhile, you may try using the predict method available in Deep Learning Toolbox as,
Y = predict(net_encode, inputs)
This method predicts responses using a trained deep learning neural network on image data as well. Please refer to this documentation for more information on predict method.
  1 个评论
Yanuar Rizki Pahlevi
Yanuar Rizki Pahlevi 2020-11-11
in the end I did used predict and got the answer. thanks for looking at this question!

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