[Numpy-svn] [numpy/numpy] 9c7e6e: BUG: Refactor nanfunctions to behave as agreed on ...

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/numpy/numpy
  Commit: 9c7e6e30315ab4541775d9a78630e88423c752c1
      https://github.com/numpy/numpy/commit/9c7e6e30315ab4541775d9a78630e88423c752c1
  Author: Charles Harris <charlesr.harris at gmail.com>
  Date:   2013-10-04 (Fri, 04 Oct 2013)

  Changed paths:
    M numpy/lib/nanfunctions.py
    M numpy/lib/tests/test_nanfunctions.py

  Log Message:
  -----------
  BUG: Refactor nanfunctions to behave as agreed on for 1.9.

    Deal with subclasses of ndarray, like pandas.Series and matrix.
   Subclasses may not define the new keyword keepdims or deal
  gracefully with ufuncs in all their forms. This is solved by
  throwing the problem onto the np.sum, np.any, etc. functions
  that have ugly hacks to deal with the problem.

    Settle handling of all-nan slices.
   nanmax, nanmin -- Raise warning, return NaN for slice.
  nanargmax, nanargmin -- Raise ValueError.
  nansum -- Return 0 for slice.
  nanmean, nanvar, nanstd -- Raise warning, return NaN for slice.

    Make NaN functions work for scalar arguments.
   This may seem silly, but it removes a check for special cases.

    Update tests
   Deal with new all-nan handling.
  Test with matrix class as example of subclass without keepdims.
  Test with scalar arguments.

    Fix nanvar issue reported in #3860.

    Closes #3860 #3850


  Commit: 2f77e1e6e6b91a9cd11c422342c69e8fd68ee803
      https://github.com/numpy/numpy/commit/2f77e1e6e6b91a9cd11c422342c69e8fd68ee803
  Author: Charles Harris <charlesr.harris at gmail.com>
  Date:   2013-10-04 (Fri, 04 Oct 2013)

  Changed paths:
    M numpy/core/_methods.py
    M numpy/core/tests/test_numeric.py

  Log Message:
  -----------
  BUG: Make ndarray.{var, std} work for scalars.


  Commit: 0cfa4ed4ee39aaa94e4059c6394a4ed75a8e3d6c
      https://github.com/numpy/numpy/commit/0cfa4ed4ee39aaa94e4059c6394a4ed75a8e3d6c
  Author: Charles Harris <charlesr.harris at gmail.com>
  Date:   2013-10-05 (Sat, 05 Oct 2013)

  Changed paths:
    M numpy/core/_methods.py
    M numpy/core/tests/test_numeric.py
    M numpy/lib/nanfunctions.py
    M numpy/lib/tests/test_nanfunctions.py

  Log Message:
  -----------
  Merge pull request #3866 from charris/refactor-1.9-nanfunctions

Refactor 1.9 nanfunctions


Compare: https://github.com/numpy/numpy/compare/c2dc2cdb7353...0cfa4ed4ee39