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Generalize get_dummies #1053

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May 2, 2024
Merged

Generalize get_dummies #1053

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a357aee
generalize/fix get_dummies
rjzamora May 2, 2024
2ff6afb
make sure test works with cudf
rjzamora May 2, 2024
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4 changes: 4 additions & 0 deletions dask_expr/_dummies.py
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Original file line number Diff line number Diff line change
Expand Up @@ -156,6 +156,7 @@ class GetDummies(Blockwise):
"prefix_sep",
"dummy_na",
"columns",
"sparse",
"drop_first",
"dtype",
]
Expand All @@ -164,9 +165,12 @@ class GetDummies(Blockwise):
"prefix_sep": "_",
"dummy_na": False,
"columns": None,
"sparse": False,
"drop_first": False,
"dtype": bool,
}
# cudf has extra kwargs after `columns`
_keyword_only = ["sparse", "drop_first", "dtype"]

@staticmethod
def operation(df, *args, **kwargs):
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9 changes: 6 additions & 3 deletions dask_expr/tests/test_dummies.py
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Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
import pandas
import pytest

from dask_expr import from_pandas, get_dummies
Expand All @@ -10,9 +11,11 @@
"data",
[
pd.Series([1, 1, 1, 2, 2, 1, 3, 4], dtype="category"),
pd.Series(pd.Categorical([1, 1, 1, 2, 2, 1, 3, 4], categories=[4, 3, 2, 1])),
pd.Series(
pandas.Categorical([1, 1, 1, 2, 2, 1, 3, 4], categories=[4, 3, 2, 1])
),
pd.DataFrame(
{"a": [1, 2, 3, 4, 4, 3, 2, 1], "b": pd.Categorical(list("abcdabcd"))}
{"a": [1, 2, 3, 4, 4, 3, 2, 1], "b": pandas.Categorical(list("abcdabcd"))}
),
],
)
Expand All @@ -22,4 +25,4 @@ def test_get_dummies(data):
ddata = from_pandas(data, 2)
res = get_dummies(ddata)
assert_eq(res, exp)
pd.testing.assert_index_equal(res.columns, exp.columns)
pandas.testing.assert_index_equal(res.columns, exp.columns)
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