[DataFrame] Fixing bugs in groupby#2031
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robertnishihara merged 2 commits intoray-project:masterfrom May 10, 2018
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robertnishihara
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* master: [xray] Fix UniqueID hashing for object and task IDs. (ray-project#2017) [DataFrame] Fixing bugs in groupby (ray-project#2031) [DataFrame] Fixes dropna subset bug (ray-project#2018)
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* master: [xray] Fix UniqueID hashing for object and task IDs. (ray-project#2017) [DataFrame] Fixing bugs in groupby (ray-project#2031) [DataFrame] Fixes dropna subset bug (ray-project#2018) [DataFrame] Implement where (ray-project#1989)
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Fixing a few bugs in
groupby:Passing a
df.column_nametogroupbyas thebyparameter gave aValueError: buffer source array is read-only. We fix this by extracting the values (those are all we need anyway).Also fixing a bug where we try to append the
tuplepartition to the list of args.Finally, I found a bug where we were trying to access the value in
keys_and_valuesas a Series still, so it no longer needs to be anp.array.