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Pull requests: pandas-dev/pandas
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PERF: perf improvements in timedelta conversions from integer dtypes Performance Memory or execution speed performance Timedelta Timedelta data type
PERF: fix performance for series slices (even more) Performance Memory or execution speed performance
PERF: pd.Index.is_all_dates doesn't require full-scan inference Performance Memory or execution speed performance
ENH: numexpr on boolean frames Enhancement Performance Memory or execution speed performance
#2925 by jreback was merged Mar 9, 2013 Loading… updated Jun 13, 2014
PERF: Limit memmove to >= 256 bytes, relax contiguity requirements Performance Memory or execution speed performance
Improve performance for custom business days (GH6584) Frequency DateOffsets Performance Memory or execution speed performance
ENH: Float64Index now uses Float64Hashtable as a backend Compat pandas objects compatability with Numpy or Python functions Performance Memory or execution speed performance
ENH/API: offsets funcs now accepts datetime64 Frequency DateOffsets Performance Memory or execution speed performance
PERF: optimize Index.delete for dtype=object Indexing Related to indexing on series/frames, not to indexes themselves Performance Memory or execution speed performance
PERF: performance gains in DataFrame groupby.transform for ufuncs (GH7383) Groupby Performance Memory or execution speed performance
Panel shift revert Bug Dtype Conversions Unexpected or buggy dtype conversions Performance Memory or execution speed performance
PERF: Speed up DatetimeConverter by using Matplotlib's epoch2num when possible... Performance Memory or execution speed performance Visualization plotting
PERF: better dtype inference for perf gains (GH7332) Dtype Conversions Unexpected or buggy dtype conversions Performance Memory or execution speed performance
PERF: change Series indexing on multi-indexes to use a fast path (GH5567) Indexing Related to indexing on series/frames, not to indexes themselves MultiIndex Performance Memory or execution speed performance
PERF: vbench for mixed groupby with datetime (GH7555) Dtype Conversions Unexpected or buggy dtype conversions Groupby Performance Memory or execution speed performance
BUG/PERF: perf issues in object groupby aggregations (GH7555) Bug Dtype Conversions Unexpected or buggy dtype conversions Groupby Performance Memory or execution speed performance
PERF: optimize index.__getitem__ for slice & boolean mask indexers Indexing Related to indexing on series/frames, not to indexes themselves Performance Memory or execution speed performance
PERF: perf improvements in single-dtyped indexing (GH6484) Indexing Related to indexing on series/frames, not to indexes themselves Performance Memory or execution speed performance
PERF: #6700 dataframe.from_records: read into list w/ itertools.islice when specifying nrows Performance Memory or execution speed performance
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