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feat: add Axis::None for hidden dimensions with implicit aggregation

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Categories on the None axis are excluded from the grid and cell keys.
When evaluating cells, values across hidden dimensions are aggregated
using a per-measure function (default SUM). Adds evaluate_aggregated
to Model, none_cats to GridLayout, and 'n' shortcut in TileSelect.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Edward Langley
2026-04-02 16:38:35 -07:00
parent dd728ccac8
commit 5a251a1cbe
9 changed files with 193 additions and 12 deletions
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4
src/ui/grid.rs
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@ -291,7 +291,7 @@ impl<'a> GridWidget<'a> {
continue;
}
};
let value = self.model.evaluate(&key);
let value = self.model.evaluate_aggregated(&key, &layout.none_cats);
let cell_str = format_value(value.as_ref(), fmt_comma, fmt_decimals);
let is_selected = ri == sel_row && ci == sel_col;
@ -378,7 +378,7 @@ impl<'a> GridWidget<'a> {
}
let total: f64 = (0..layout.row_count())
.filter_map(|ri| layout.cell_key(ri, ci))
.map(|key| self.model.evaluate_f64(&key))
.map(|key| self.model.evaluate_aggregated_f64(&key, &layout.none_cats))
.sum();
let total_str = format_f64(total, fmt_comma, fmt_decimals);
buf.set_string(