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Title: FIX: add base kwarg to symlognor by jklymak · Pull Request #16404 · matplotlib/matplotlib · GitHub

Open Graph Title: FIX: add base kwarg to symlognor by jklymak · Pull Request #16404 · matplotlib/matplotlib

X Title: FIX: add base kwarg to symlognor by jklymak · Pull Request #16404 · matplotlib/matplotlib

Description: PR Summary SymLogNorm has a linear range that the docs stated was the same size as a decade in the logarithmic range. Except the logarithm being used in the code was base=np.e, not base=10, so it was not really a decade. This PR prepares to change the default to 10 by adding a base kwarg, and warning if it is not specified. If a user wants to suppress the warning they should specify base. In 3.3. we may change the algorithm again slightly #16391, but will almost certainly default to base=10 rather than np.e. This was discussed on the Feb 3 Dev call. PR Checklist Has Pytest style unit tests Code is Flake 8 compliant New features are documented, with examples if plot related Documentation is sphinx and numpydoc compliant Added an entry to doc/users/next_whats_new/ if major new feature (follow instructions in README.rst there) Documented in doc/api/api_changes.rst if API changed in a backward-incompatible way

Open Graph Description: PR Summary SymLogNorm has a linear range that the docs stated was the same size as a decade in the logarithmic range. Except the logarithm being used in the code was base=np.e, not base=10, so it ...

X Description: PR Summary SymLogNorm has a linear range that the docs stated was the same size as a decade in the logarithmic range. Except the logarithm being used in the code was base=np.e, not base=10, so it ...

Opengraph URL: https://github.com/matplotlib/matplotlib/pull/16404

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c7df5d2 FIX: add base kwarg to symlognorm jklymak Feb 10, 2020 https://github.com/matplotlib/matplotlib/pull/16404/commits/c7df5d2770030fe4588a0fc1ab4449a689554dfc
ec05b76 Update doc/api/next_api_changes/behaviour.rst jklymak Feb 16, 2020 https://github.com/matplotlib/matplotlib/pull/16404/commits/ec05b764c87b84ea0415fd1c2f52f75c48792119
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