Lars Buitinck
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749ea70370
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ENH let DictVectorizer build a CSR matrix directly and use array.array
Prevents copying.
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2012-09-29 23:01:27 +02:00 |
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Lars Buitinck
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ef62a60be7
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DOC + FIX DictVectorizer: actually support single Mapping arg in transform
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2012-04-09 16:31:54 +02:00 |
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Lars Buitinck
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28e012cebb
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COSMIT use sorted instead of list.sort in DictVectorizer
Guaranteed to return a list, even in Python 3.
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2012-04-02 17:52:09 +02:00 |
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Olivier Grisel
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e4ce5cf20d
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ENH: sort features in dict vectorizer + new doc
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2012-04-01 03:13:23 +02:00 |
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Lars Buitinck
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e05e1a42b9
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ENH reduce memory usage of DictVectorizer.transform in sparse case
Don't materialize iterable's entire contents.
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2012-03-17 12:18:22 +01:00 |
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Lars Buitinck
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d5126a7fad
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DOC + pyflakes in DictVectorizer
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2012-03-17 12:11:41 +01:00 |
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Lars Buitinck
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49e29534d5
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ENH optimize DictVectorizer (sparse case)
Constructing a 7944 × 9491 coo_matrix (55608 non-empty elements)
is about 3x faster than with the old lil_matrix-based code.
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2012-03-17 00:48:28 +01:00 |
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Lars Buitinck
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c128b147b4
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COSMIT rename DictVectorizer source files
At the request of @mblondel.
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2012-03-16 23:12:41 +01:00 |