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* DOC: Various fixes.Charles Harris2013-08-142-19/+18
| | | | | | Fix typos and clarify some explanations. Document the changes in the return values of nanargmin and nanargmax for all-NaN slices in the 1.8.0 release notes.
* TST: Add tests for the nansum, nanmean, nanvar, and nanstd.Charles Harris2013-08-121-190/+367
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* MAINT: Refactor nanfunctions.Charles Harris2013-08-121-333/+468
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | nanmax, nanmin -------------- Add out and keepdims keywords. nanargmin, nanargmax -------------------- A NanWarning is raised if an all NaN slice detected. For all such slices np.iingo(np.intp).min is returned as the index value. nansum ------ The keywords dtype, out, and keepdims are added. A FutureWarning is raised, as in the future the mean of an empty slice after NaN replacement will be 0 instead of the current NaN. nanmean, nanvar, nanstd ----------------------- For all, if the input array is of inexact type then the dtype and out parameters must be of inexact type if specified. That insures that NaNs can be returned when appropriate. The nanmean function detects empty slices after NaN replacement and raises a NanWarning. NaN is returned as the value for all such slices. The nanmean and nanstd functions detect degrees of freedom <= 0 after NaN replacement and raise a NanWarning. NaN is returned as the value for all such slices.
* MAINT: Separate nan functions into their own module.Charles Harris2013-08-125-463/+935
| | | | | | | | | | | | | | New files lib/nanfunctions.py and lib/tests/test_nanfunctions.py are added and both the previous and new nan functions and tests are moved into them. The existing nan functions moved from lib/function_base are: nansum, nanmin, nanmax, nanargmin, nanargmax The added nan functions moved from core/numeric are: nanmean, nanvar, nanstd
* ENH: implement median in terms of partitionJulian Taylor2013-08-122-12/+79
| | | | | | Partitioning is sufficient to obtain the median and is much faster. In the case of overwrite_input=True the resulting array will not be fully sorted anymore.
* DOC: fix some minor issues with histogram2d docstring formatting.Ralf Gommers2013-08-111-9/+19
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* DOC: update example of histogram2d to doctest format.Frank Breitling2013-08-111-31/+30
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* Fix doc typoMartin Spacek2013-08-041-1/+1
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* BUG: Make np.insert check for out of bounds axis arguments.Félix Hartmann2013-08-022-1/+10
| | | | Also add test for IndexError exception when axis is out of bounds.
* TST: add test for negative axis values in np.insert.Félix Hartmann2013-08-021-0/+7
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* BUG: Fix bug in np.insert when axis=-1Félix Hartmann2013-08-021-1/+1
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* Link cumsum and diff to one another as theyre roughly the inverse of each otherNils Werner2013-07-241-1/+1
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* Merge pull request #3531 from fkbreitl/masternjsmith2013-07-181-15/+45
|\ | | | | Updated documentation for histogram2d() in twodim_base.py according to discussion
| * Update twodim_base.pyFrank Breitling2013-07-171-1/+1
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| * Update twodim_base.pyFrank Breitling2013-07-131-33/+44
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| * Fixed two typos.Frank B2013-02-051-2/+2
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| * Added example for 2D-histogram with variable bin size.Frank B2013-02-051-2/+21
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* | MAINT: Remove uses of the WarningManager class.Charles Harris2013-07-122-32/+12
| | | | | | | | | | | | | | | | | | | | | | | | WarningManager was a workaround for the lack of the with statement in Python versions < 2.6. As those versions are no longer supported it can be removed. Deprecation notes are added to WarningManager and WarningMessage, but to avoid a cascade of messages in third party apps, no warnings are raised at this time, that can be done later. Closes #3519.
* | Merge pull request #3518 from charris/use-errstate-context-managerCharles Harris2013-07-113-83/+26
|\ \ | | | | | | MAINT: Use np.errstate context manager.
| * | MAINT: Use np.errstate context manager.Charles Harris2013-07-113-83/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that Python < 2.6 is no longer supported we can use the errstate context manager in places where constructs like ``` old = seterr(invalid='ignore') try: blah finally: seterr(**old) ``` were used.
* | | MAINT: Remove outdated version checks.Charles Harris2013-07-111-3/+0
|/ / | | | | | | | | | | | | | | | | | | Because Numpy 1.8.0 will no longer supports Python versions < 2.6 we no longer need to check for that and can also remove the code that is specific to those earlier versions. To make this a bit safer, the toplevel setup.py file now contains a check of the Python version number and raises an error when run by an unsupported version.
* | TST: New test to ensure np.pad allows pad_width of zero.Jostein Bø Fløystad2013-07-051-0/+8
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* | BUG: Allow to pad arrays by zero entries.Jostein Bø Fløystad2013-07-051-1/+1
| | | | | | | | | | np.pad will now accept a pad_width containing zeros. The functionality was already implemented, but validation of input was too strict.
* | BUG: Make np.load transfer file ownership to the returned NpzFile.Charles Harris2013-06-222-5/+22
| | | | | | | | | | | | | | This assures that when the loaded file is closed it also closes the file descriptor, avoiding a resource warning in Python3. Closes #3457.
* | adjust the optimal IO buffer size for npz filesBartosz Telenczuk2013-06-123-15/+14
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* | Chunk reads in format.read_array.Alex Ford2013-06-121-3/+14
| | | | | | | | | | | | | | | | | | Maximum data size limitations in the crc32 module cause errors when reading more than 2 ** 32 bytes from gzip streams. Work around this issue when reading large arrays from npz files by chunking reads to 256mb. This appears to resolve bug #2922.
* | BUG: fix loading large npz files (fixes #2922)Bartosz Telenczuk2013-06-122-6/+25
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* | Merge pull request #3243 from seberg/deprecate-non-integer-arguments-newCharles Harris2013-06-092-2/+2
|\ \ | | | | | | Deprecate non integer arguments
| * | STY: Style fixes for integer deprecation changesSebastian Berg2013-06-091-1/+1
| | | | | | | | | | | | Also minor changes in the documentation.
| * | MAINT: adept divisions for truedivideSebastian Berg2013-05-312-2/+2
| | | | | | | | | | | | Following deprecations would cause problems otherwise.
* | | BUG: The npv function in financial.py was incorrectly implemented.bebert2182013-05-292-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Correct the implementation of the npv function, its documentation, and the mirr function that depends on it. The test_financial.py is also corrected to take into account those modifications The npv function behavior was contrary to what the documentation stated as it summed indexes 1 to M instead of 0 to M-1. The mirr function used a corrective factor to get the correct result in spite of that error so that factor is removed. Closes #649
* | | ENH: improve performance of byte_bounds for continous arraysJulian Taylor2013-05-281-2/+1
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* | | ENH: implement may_share_memory in CJulian Taylor2013-05-282-31/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | memmap needs to call it in __array_finalize__ to determine if it can drop the references on copies. The python version if may_share_memory caused significant slowdowns when slicing these maps. closes gh-3364
* | | DOC: Correcting docstring for asscalarDan Miller2013-05-251-1/+2
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* | | Merge pull request #3339 from endolith/min_max_docstringsCharles Harris2013-05-201-18/+38
|\ \ \ | | | | | | | | DOC: Min max docstrings
| * | | DOC: Harmonize max and min docstrings with each otherendolith2013-05-171-8/+10
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| * | | DOC: Mention all min/max functions from all others, clarify differencesendolith2013-05-161-10/+28
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* | | Merge pull request #3329 from JDWarner/faster_arraypadCharles Harris2013-05-192-429/+1102
|\ \ \ | |/ / |/| | ENH: improved, faster algorithm for array padding
| * | ENH: improved, faster algorithm for array paddingJosh Warner (Mac)2013-05-192-429/+1102
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | New padding method which scales much better with dimensionality. This new implementation is fully vectorized, builds each abstracted n-dimensional padding block in a single step, and takes advantage of separability. The API is completely preserved, and the old algorithm is used if a vector function is input for `mode`. The new algorithm is faster for all tested combinations of inputs, and scales much better with dimensionality. Execution time reductions from ~25% for small rank 1 arrays to >99% for rank 4+ arrays observed.
* | | Fix issue with broadcast_arrays() and user defined dtypesJay Bourque2013-05-101-1/+4
|/ / | | | | | | broadcast_arrays() does not handle struct and custom dtypes correctly. Dtype of returned broadcasted arrays is always '|V8'. Fix broadcast_arrays() so that dtype of returned arrays is correct dtype for user defined dtypes.
* | STY: pep8 and pep257 audit.Josh Warner (Mac)2013-05-071-89/+101
| | | | | | | | | | | | Audit numpy/lib/arraypad.py for pep8 and pep257 compliance. Also fix a few minor docstring corrections converting ] into ) or vice versa.
* | Merge pull request #3264 from endolith/patch-1Charles Harris2013-05-041-8/+5
|\ \ | | | | | | DOC: Change example to demonstrate function
| * | DOC: Change example to demonstrate functionendolith2013-04-191-8/+5
| | | | | | | | | "a * 0.5" example might as well be new_func(a) directly, it doesn't demonstrate the purpose of apply_along_axis().
* | | MAINT: Apply 2to3 idioms fixer.Charles Harris2013-05-029-19/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The idioms fixer makes the following replacements. 1) int <- bool 2) comparison or identity of types <- isinstance 3) a.sort() <- sorted(a) There were two problems that needed to be dealt with after the application of the fixer. First, the replacement of comparison or identity of types by isinstance was not always correct. The isinstance function returns true for subtypes whereas many of the places where the fixer made a substitution needed to check for exact type equality. Second, the sorted function was applied to arrays, but because it treats them as iterators and constructs a sorted list from the result, that is the wrong thing to do. Closes #3062.
* | | Merge pull request #3280 from seberg/issue-3279seberg2013-04-272-1/+6
|\ \ \ | | | | | | | | BUG: np.insert must copy index array
| * | | BUG: np.insert must copy index arraySebastian Berg2013-04-272-1/+6
| | | | | | | | | | | | | | | | Otherwise it would do in-place changes to it. Fixes gh-3279.
* | | | MAINT: Remove unneeded version checks.Charles Harris2013-04-242-13/+5
| | | | | | | | | | | | | | | | | | | | | | | | Now that only Python versions 2.6-2.7 and 3.2-3.3 are supported some version checks are no longer needed. This patch removes them so as to clean up the code.
* | | | MAINT: Use from future_builtins zip and map.Charles Harris2013-04-212-10/+7
| | | | | | | | | | | | | | | | | | | | | | | | For Python versions 2.6 and 2.7 the iterator forms of zip and map can be imported from future_builtins. That is done here so as to avoid using itertools.{izip, imap}.
* | | | 2to3: Apply unicode fixer.Charles Harris2013-04-213-7/+15
| |/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The unicode fixer strips the u from u'hi' and converts the unicode type to str. The first won't work for Python 2 and instead we replace the u prefix with the sixu function borrowed from the six compatibility package. That function calls the unicode constructor with the 'unicode_escape' encoder so that the many tests using escaped unicode characters like u'\u0900' will be handled correctly. That makes the sixu function a bit different from the asunicode function currently in numpy.compat and also provides a target that can be converted back to the u prefix when support for Python 3.2 is dropped. Python 3.3 reintroduced the u prefix for compatibility. The unicode fixer also replaces 'unicode' with 'str' as 'unicode' is no longer a builtin in Python 3. For code compatibility, 'unicode' is defined either as 'str' or 'unicode' in numpy.compat so that checks like if isinstance(x, unicode): ... will work properly for all python versions. Closes #3089.
* | | Merge pull request #3249 from charris/2to3-apply-next-fixerCharles Harris2013-04-152-11/+16
|\ \ \ | | | | | | | | 2to3: Apply next fixer.
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