Warn on imposing max rows and fix for curve #1408
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Codecov ReportAll modified and coverable lines are covered by tests ✅
Additional details and impacted files@@ Coverage Diff @@
## main #1408 +/- ##
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+ Coverage 87.39% 88.81% +1.41%
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Files 50 51 +1
Lines 7490 7618 +128
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+ Hits 6546 6766 +220
+ Misses 944 852 -92 ☔ View full report in Codecov by Sentry. |
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- I feel like
MAX_ROWScould be increased, 10000 is kind of low specially considering that now HoloViews uses the webGL backend by default for Bokeh. How about 100000? - Just for discussion for now, do you think we should expose this kind of setting in the explorer? Maybe in an advanced tab?
hvplot/ui.py
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| @@ -688,10 +688,22 @@ def _plot(self): | |||
| if len(df) > MAX_ROWS and not ( | |||
| self.kind in KINDS['stats'] or kwargs.get('rasterize') or kwargs.get('datashade') | |||
| ): | |||
| df = df.sample(n=MAX_ROWS) | |||
| if self.kind == 'line': | |||
| param.main.param.warning( | |||
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How about displaying these warnings in the alert box in addition/in place of as a programmatic warning?
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I suggest to do df = df.sample(n=MAX_ROWS).sort_index(). Otherwise the line plot will not work as it should.
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I disagree with sort_index; the x may not always be index.
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good point. is there an option to add sort_index as an option?
something like df.hvplot.explorer(x='x', y='y', kind='line', sort_index=True)
where the default is sort_index=False ?
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I think it probably makes more sense to do sort_values(selected_x) when sampling for line, but I still think head is better, and perhaps a slider for sample size
Closes #1406
Adds a warning and checks if kind == curve to prevent random sampling; only sample head.