I noticed that when I plot the confusion matrix (on my validation set) and sum the numbers that it does not correspond to the number of items in my validation set.
The confusion matrix (array):
array([[50, 13], [ 0, 65]])
Adding the numbers above = 50 + 13 + 65 = 128
The number of items in the validation set:
learn.data.valid_ds LabelList (140 items) x: ImageList ...
I would expect these two values to be the same or am I missing something?