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[DataFrame] Refactor indexers and implement setitem #2020

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Merged
devin-petersohn merged 2 commits into from
May 15, 2018
Merged

[DataFrame] Refactor indexers and implement setitem #2020

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1d99e2e
Reset to_pandas change; update current
simon-mo May 14, 2018
820c2ce
Fix pd_df bug
simon-mo May 14, 2018
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10 changes: 4 additions & 6 deletions python/ray/dataframe/dataframe.py
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Original file line number Diff line number Diff line change
Expand Up @@ -5027,9 +5027,8 @@ def loc(self):
We currently support: single label, list array, slice object
We do not support: boolean array, callable
"""
raise NotImplementedError(
"To contribute to Pandas on Ray, please visit "
"github.com/ray-project/ray.")
from .indexing import _Loc_Indexer
return _Loc_Indexer(self)

@property
def is_copy(self):
Expand All @@ -5054,9 +5053,8 @@ def iloc(self):
We currently support: single label, list array, slice object
We do not support: boolean array, callable
"""
raise NotImplementedError(
"To contribute to Pandas on Ray, please visit "
"github.com/ray-project/ray.")
from .indexing import _iLoc_Indexer
return _iLoc_Indexer(self)

def _copartition(self, other, new_index):
"""Colocates the values of other with this for certain operations.
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10 changes: 10 additions & 0 deletions python/ray/dataframe/index_metadata.py
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Original file line number Diff line number Diff line change
Expand Up @@ -382,3 +382,13 @@ def convert_to_index_sliceable(self, key):
key: slice to convert and check
"""
return convert_to_index_sliceable(self._coord_df, key)

def get_partition(self, partition_id):
"""Return a view of coord_df where partition = partition_id
"""
return self._coord_df[self._coord_df.partition == partition_id]

def sorted_index(self):
return (self._coord_df
.sort_values(['partition', 'index_within_partition'])
.index)
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