[ENH] Nice binning of time variables (Distributions, SOM)#4123
[ENH] Nice binning of time variables (Distributions, SOM)#4123ajdapretnar merged 2 commits intobiolab:masterfrom
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@@ Coverage Diff @@
## master #4123 +/- ##
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+ Coverage 85.62% 85.66% +0.03%
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Files 388 389 +1
Lines 69435 69638 +203
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+ Hits 59454 59654 +200
- Misses 9981 9984 +3 |
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I ❤️ it! |
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So far I was not able to find any faults with it. It is responsive, labels are correct, output is as expected. This makes Distributions really useful for visualizing datetime data! The only thing that doesn't seem to be implemented yet is the legend in SOM - it shows floats for datetime. |
Orange/widgets/unsupervised/owsom.py
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| else: | ||
| col = self.data.get_column_view(self.attr_color)[0].astype(float) | ||
| self.thresholds = decimal_binnings(col, min_bins=4)[0][1:-1] | ||
| binning = decimal_binnings(col, min_bins=4)[-1] |
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I think you forget to check whether self.attr_color is a Time Variable. This doesn't use time_binnings.
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Oops. I just ported it to new signature of decimal_binning. It works now.
I'm not sure I like the legend. It uses short labels.
Perhaps the lower bound for each interval should be in the long form. That is, the last two should be 17 Apr - Jul and >= 17 Jul. The second would be in short form, except of course when the longer is needed, like in 16 Oct - 17 Jan.
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| if not return_defs: | ||
| bins = [get_bins(bin) for bin in bins] | ||
| def time_binnings(data, *, min_bins=2, max_bins=50, min_unique=5, add_unique=0): |
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The output of time_binnings and decimal_binnings are not the same. The latter uses BinDefinition, which has thresholds and labels properties, while the former doesn't.
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This can't be. OWDistributions calls either time_binnings or decimal_binnings, stores the result and then doesn't care where the bins came from.
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This was OWSOM's problem. Fixed.
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Fixes #3964.
Description of changes
time_binningfunction, similar todecimal_binning, which can be used in any visualization widget that discretizes numeric featuresdecimal_binningBinDefinitiondecimal_binning)Includes