MAINT: fix doc build issues

PyWavelets / pywt

PyWavelets - Wavelet Transforms in Python

http://pywavelets.readthedocs.org

MIT License

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MAINT: fix doc build issues #611

Closed rgommers closed 2 years ago

rgommers commented 2 years ago

After the multi-resolution and n-D wavelet packets PRs were merged, the doc build on RTD broke again (we have no CI for doc build). This PR fixes all issues and warnings.

[ci skip]

rgommers commented 2 years ago

Let's merge this to verify RTD build is fixed.