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@f0uriest f0uriest released this 05 Jul 21:05
· 11923 commits to master since this release
v0.4.9
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Learn about vigilant mode.

Bug Fixes:

  • Fix a major bug in the least squares routine that set the initial regularization parameter to np.nan, meaning that the optimizer would stall as soon as it can no longer take full newton steps.

New Features:

  • Adds a Cholesky factorization option for solving the least squares trust region problem. This can be faster, but less numerically stable due to squaring the condition number of the Jacobian. Often still produces good results since the trust region itself regularizes the solution enough to overcome the poor conditioning.
  • Methods that take Grid objects now also accept an ndarray of nodes or an integer specifying the number of nodes in each direction.
  • Added repr methods for string representations of more objects.
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