unrecognized function or variable when working with pre-trained network?

what is the reason of that error and how can i fix it.

i loaded network (alexnet) , and exported layer to workspace in matlab but after runing the project, the layers_1 will disappear in workspace!!

thanks for your help.

here is the layers_1 i exported from DeepNetworkDesigner:

after i Run the project, the layers_1 will disappear:

[Walter Roberson]

We need to see your code.

[shivan artosh]

clear all; close all; clc;
 net=alexnet
%analyzeNetwork(net)
imds = imageDatastore('lung augmented', ...
    'IncludeSubfolders',true, ...
    'LabelSource','foldernames');

[imdsTrain,imdsValidation] = splitEachLabel(imds,0.7,'randomize',true);

augimdsTrain = augmentedImageDatastore([227 227],imdsTrain);
augimdsValidation = augmentedImageDatastore([227 227],imdsValidation);

options = trainingOptions('sgdm', ...
    'MiniBatchSize',64, ...
    'MaxEpochs',10, ...
    'InitialLearnRate',0.0001, ...
    'Shuffle','every-epoch', ...
    'ValidationData',augimdsValidation, ...
    'ValidationFrequency',3, ...
    'Verbose',false, ...
    'Plots','training-progress');

net = trainNetwork(augimdsTrain,layers_1,options)
[YPred, probs] = classify(net,augimdsValidation);
accuracy = mean(YPred ==imdsValidation.Labels)
figure
cm=confusionchart (imdsValidation.Labels, YPred);

[shivan artosh]

excuse me what is this please:

i tried to export the alexnet layers.

[Walter Roberson]

I recommend getting rid of the line

clear all; close all; clc;

[Walter Roberson]

Your code does not define layers_1 and does not load() it from anywhere. If you had it in your workspace before you ran the script, then it would have been destroyed by the "clear all"

Answer 1

[Ameer Hamza]

clear all

deletes all the variables loaded in workspace. It is also unrecommended to add this at top of every script. Remove it to avod deleting any varibles.