Comparisons between string and double are not supported.

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error: nnet.cnn.TrainingOptionsADAM
The value of 'ValidationData' is not valid. The datastore has an invalid transform function defined.
cause: Comparisons between string and double are not supported.
What should I change to fix this error?
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Accepted Answer

Abolfazl Chaman Motlagh
Abolfazl Chaman Motlagh on 5 Dec 2021
in your code nettotrain is eather "YOLOv2" or "SSD", but in training process and preprocessData function and some other lines you check if it is 1 or 2. (that's why you get Comparisons between string and double are not supported)
if nettotrain == 1 %line 101
...
if nettotrain == 1 %line 115
...
if nettotrain == 2 %line 151
for this issue use strcmp (or just change nettotrain to 1 or 2 before all this problems).
for example:
if strcmp(nettotrain,"YOLOv2")

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