Help: ml_trainsvm error, 'The formats of all prediction arrays to concatenate need to be identical'

[KevMat18304]

Help: ml_trainsvm error, 'The formats of all prediction arrays to concatenate need to be identical'

[EmileDeBiot]

Hi KevMat,

I feel the response is a bit late for you but maybe it will be useful for others.

I had the same problem using a different approach (different model: FBCSP and preprocessing). The solution I found is to add markers from the class that is less represented in your target markers. I feel this error occurs if there are not enough predictions for one type of target (maybe when computing mis-classification). I haven't dug to much to find why there is an error, but maybe this solution is enough <3

Best,
Emile.