Feature: Add top-aligned ribbon flow plot type #559
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cvanelteren
changed the title
(cherry picked from commit 1ff58be)
beckermr
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Feb 11, 2026
| return diagrams[0] if len(diagrams) == 1 else diagrams | ||
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| @docstring._snippet_manager | ||
| def ribbon( |
beckermr
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Feb 12, 2026
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beckermr
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Idk if the test failures matter or not. Otherwise Lgtm.
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The tests are still a bit flaky -- been trying to fix it but it feels like whack-a-mole |
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This PR adds a new ribbon flow plot type via ax.ribbon for fixed-row, top-aligned transition diagrams, distinct from Sankey layering because category rows remain globally stable across periods. It includes a reusable implementation in plot_types/ribbon.py, PlotAxes API wiring, a smoke test in test_plot.py, and a new plot-types gallery example using synthetic generic categories so the feature is documented without domain-specific assumptions.