Remove a useless loop that copies an array to itself
Merge pull request #2768 from SpecLad:useless-loop
Added more info on the data input variable of kmeans
Merge pull request #2742 from StevenPuttemans:feature_3176
Merge remote-tracking branch 'origin/2.4' into merge-2.4
Merge pull request #2792 from SpecLad:merge-2.4