Implementation of median amplitude normalization.

[thurinj]

See PR #252 for complete discussion.

I've moved the normalization logic out of the plotting function in order to fix the stream-per-stream normalization, and allow the addition of median based normalization. I haven't changed the default (still based on the maximum value in the dataset). Having the median normalization should help visualize the dataset when big changes in amplitudes are expected (for strong-motion data for instance).

This also comes with minor fixes for the waveform plots.

[rmodrak]

Very strange, here is the main problem (some kind of scipy regression?):

ImportError: module 'scipy.signal' has no attribute 'hann'

For the full traceback:
https://github.com/uafgeotools/mtuq/actions/runs/8565130022/job/23472731288#step:6:23

[rmodrak]

There is also a nonfatal typo, from a while back:

mtuq/data/examples/unpack.bash

Line 12 in 5ebdd79

20090407201255351.tgz 20210809074550.tgz 20SPECFEM3D_SGT.tgz SPECFEM3D_SAC.tgz;

tar (child): 20SPECFEM3D_SGT.tgz: Cannot open: No such file or directory
tar (child): Error is not recoverable: exiting now
tar: Child returned status 2
tar: Error is not recoverable: exiting now

[thurinj]

Scipy 1.13.0 was released on April 2nd, so not impossible that the error is coming from there. I'll work on it. I'll also include the unpack fix.

[thurinj]

The problem seems to be coming from the dictionary entry in the obspy plugin system. I've tested it by modifying the entry_points.txt in obspy-1.4.0.dist-info from:

hann = scipy.signal:hann
to
hann = scipy.signal.windows:hann

and the taper function called in process_data.py is working again.

The new doc for scipy.signal.hann says it is deprecated and that we should be using scipy.signal.windos.hann instead.
A quick temporary fix would be to lock the scipy version to <= 1.12.0 and wait for an obspy fix before removing this version constraint.

[rmodrak]

The problem seems to be coming from the dictionary entry in the obspy plugin system. I've tested it by modifying the entry_points.txt in obspy-1.4.0.dist-info from:

hann = scipy.signal:hann to hann = scipy.signal.windows:hann

and the taper function called in process_data.py is working again.

The new doc for scipy.signal.hann says it is deprecated and that we should be using scipy.signal.windos.hann instead. A quick temporary fix would be to lock the scipy version to <= 1.12.0 and wait for an obspy fix before removing this version constraint.

Very helpful thanks!