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…dd a test, and add a numba version matching the count matrix impl because this would otherwise require a hot python loop
cwindolf
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| from numba import jit | ||
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| @jit(nopython=True, nogil=True) | ||
| def compute_pair_match_indices(spike_frames1, spike_frames2, delta_frames): |
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I think we should generally change the nomenclature from frames to samples to match core spikeinterface language.
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Hmm, delta_frames is the arg name of do_score_labels and is used across this file in various functions. I am a bit hesitant to change it in this PR just because it moves outside of score labels stuff. Maybe that could be a followup?
chrishalcrow
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chrishalcrow
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The actual math/algorithm looks great, and I approve of that.
But this bit of code is very old, and is using language that is out of date with the rest of SpikeInterface (or at least the newer bits of it...). Would be great if we could bring it up to date.
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Thank you Chris! Will fix that up and let you know. Appreciate your review! |
Co-authored-by: Chris Halcrow <57948917+chrishalcrow@users.noreply.github.com>
…nit_spike_train This also reorganizes some of the loops which computed the same stuff repeatedly without achieving a readability benefit from doing so, you could say. Tried to make it feel more linear, although the logic in label_misclassification could still be a bit of a head scratcher. So I added a small test case about misclassification which wasn't covered.
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Okay, so I updated that function a bit for readability and to use get_unit_spike_train following your suggestions! (See latest commit message for more on that if curious.) Hopefully it feels a bit better! The thing I didn't do is change frames->samples, because the whole file here is talking about frames. If you grant me your blessing I will s/frames/samples/g, but I'm not sure if it belongs in this PR. For instance, there are delta_frames kwargs everywhere and I actually think those kwargs have users (I am one of them) so it may be a whole breaking change type of thing that people would want to discuss and I'd rather avoid that here :^). Lmk and thank you again so much for checking this code out! |
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Hi!
So, I gather that many have moved on to just using the count matrix for all comparisons, but I am still a devoted user of
do_score_labels(). For a long long time, I have had the asserts which check that spikes are only matched once across sortings commented out, because they did not hold with the previous sorting-based implementation. I have added a test which fails on the old version that illustrates the issue. (Note: the same issue, I think, is present in the count matrix, but I am not addressing that here. There is a note about that in the test I added, the count matrix would fail one of the cases if tested.)I eventually decided to just write a numba loop that makes sure to only match each spike once. It's pretty similar to the one in the count matrix function, with minor changes to ensure unique single matches. I followed the style of that function's numba caching.
I would note: numba is not listed as a dependency in the
"comparison"group in pyproject.toml, but I think it is one in practice, since the count matrix uses it too with no Python fallback? I can add that here if helpful.Wondering if this change feels okay? Is this score labeling used by many? I believe the result should not change except in good ways / edge cases as a result of this implementation.
Thanks!!