Allen Wang

Washington DC

Research associate at a Washington think tank. I am an economist by training but am moving more into the statistics / machine learning world.

I like to eat tamales.

number of unique elements excluding NA in r

r asked Nov 6, 2015 at 21:07

r data.table asked Mar 3, 2016 at 17:28

r data.table asked Apr 19, 2017 at 21:27

numpy multidimensional-array linear-algebra numpy-ndarray dot-product asked Jun 20, 2017 at 17:08

swift ubuntu-18.04 windows-subsystem-for-linux asked Apr 27, 2019 at 23:33

r asked Oct 5, 2015 at 15:22

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