Comparisons between string and double are not supported.

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?

[Walter Roberson]

Please show us preprocessedValidationData

[주영 이]

here!

[Walter Roberson]

Please show us the code for preprocessData()

Also, please show us the value of nettotrain at the time that the assignment to preprocessdValidationData is made.

[주영 이]

this is code

Answer 1

[Abolfazl Chaman Motlagh]

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")

[주영 이]

thank you!!!!!