Guard against trying to transform along size 0 axes #506
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make swt raise a ValueError for consistency with the dwt case
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LGTM, merged. Thanks @grlee77
incomplete sentence, want to edit that? |
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The cython function
dwt_axisdid not have a guard against zero-length inputs. This could result in PyWavelets getting stuck in an infinite loop as reported in #505 for datasets with more than 1 dimension where a transform along an axis with size zero was performed. The fix applied here applies to alldwtandwavedecfunctions. There was already a check like this in the case ofdwtandwavedecfor 1D data.The SWT functions did not suffer from the same infinite loop issue, but I have added similar checks there with the same error type for consistency with the DWT case.
closes #505