[Numpy-svn] [numpy/numpy] 37ee08: BUG: Make sure we don't divide by zero in np.polyf...

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/numpy/numpy
  Commit: 37ee08dc9c7cbe0cf8a671c8cc73877d1a142ee1
      https://github.com/numpy/numpy/commit/37ee08dc9c7cbe0cf8a671c8cc73877d1a142ee1
  Author: David Schaich <daschaich at gmail.com>
  Date:   2016-06-15 (Wed, 15 Jun 2016)

  Changed paths:
    M numpy/lib/polynomial.py

  Log Message:
  -----------
  BUG: Make sure we don't divide by zero in np.polyfit.

This should fix the issue discussed at
https://mail.scipy.org/pipermail/numpy-discussion/2013-July/067076.html

Without the ValueError added here, polyfit can (and does) return
negative or nan variances with no warning.


  Commit: 330291ffcba6d00b6534bcf80107f3baea5b48a4
      https://github.com/numpy/numpy/commit/330291ffcba6d00b6534bcf80107f3baea5b48a4
  Author: Charles Harris <charlesr.harris at gmail.com>
  Date:   2016-06-15 (Wed, 15 Jun 2016)

  Changed paths:
    M numpy/lib/polynomial.py
    M numpy/lib/tests/test_polynomial.py

  Log Message:
  -----------
  TST: Test that polyfit raises if not enough data for cov estimate.

Also a slight refactoring of np.polyfit.


  Commit: 96030cd8f29828fccea16f681f50a749bb836af0
      https://github.com/numpy/numpy/commit/96030cd8f29828fccea16f681f50a749bb836af0
  Author: Charles Harris <charlesr.harris at gmail.com>
  Date:   2016-06-15 (Wed, 15 Jun 2016)

  Changed paths:
    M numpy/lib/polynomial.py
    M numpy/lib/tests/test_polynomial.py

  Log Message:
  -----------
  Merge pull request #7747 from charris/update-7672

Update 7672, BUG: Make sure we don't divide by zero


Compare: https://github.com/numpy/numpy/compare/e26738a628de...96030cd8f298