I have two files, a training data with a label field and a test data without the label field. I have plotted a field "A" in train data:
It looks like outliers are 4,5,6 and should be removed.
Now plotting the field "A" in test file also shows somewhat similar results to the image shown. In that case, should I consider 4,5,6 as outliers, and remove them from train data, or keep them? Any pointers are appreciated.