Handle empty inputs in cov and corrcoef. #63
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See also http://projects.scipy.org/numpy/ticket/440, same issue for mean/median/average. Should be handled the same way probably, no matter what the final desired behavior is. |
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And http://projects.scipy.org/numpy/ticket/1387, bincount gives a ValueError |
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Shape is preserved now, see SHA:149e10f58209ce698bbbe1fdf820c55e943bb743 I can merge those to a single commit before pushing. |
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Grr, that Markdown for commits is horrible. |
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Looks OK to me. |
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fangerer
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…r API Merge in ~STEPAN.SINDELAR_ORACLE.COM/numpy-hpy from fa/cast_info_xfree to labs-hpy-port * commit '4222a3e193219deccdc5bc13c000b43d9387e577': Migrate function signature NpyIter_IterNextFunc to HPy Use HNpyIter_GetInnerFixedStrideArray in execute_ufunc_loop Completely remove npyiter_allocate_buffers Directly use HNPY_cast_info_xfree
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feat: Add vraddhn_s16
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Empty inputs to cov and corrcoef now result in warnings, and return 0 and 1 respectively. This is correct for scalar input but makes no sense for empty input. Raising an exception is also not appreciated usually, so just doing: empty in -> empty out, seems like the most straightforward thing.
Also fixes a minor doc bug and adds a few tests.
Closes #1773.