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feat: add Cost Waterfall bar chart (Task 9.5)

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Andrew Charlwood
2026-02-06 19:44:37 +00:00
parent 47e4aa4df2
commit 73a8d1a49f
3 changed files with 174 additions and 4 deletions
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IMPLEMENTATION_PLAN.md
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@@ -393,13 +393,13 @@ Drawer selection → update_drug_selection → app-state store → load_pathway_
- **Checkpoint**: Cost Effectiveness tab renders with lollipop dots and retention annotations ✓
### 9.5 Cost Waterfall chart (Tab 4)
- [ ] Create `dash_app/callbacks/cost_waterfall.py`:
- [x] Create `dash_app/callbacks/cost_waterfall.py`:
- Build Plotly waterfall chart from `get_cost_waterfall()` data
- Each bar = one directorate's average cost_pp_pa, sorted highest to lowest
- NHS colours, responds to chart_type toggle, date filter, trust filter
- [ ] Create figure function in `src/visualization/`
- [ ] Wire into tab switching
- **Checkpoint**: Cost Waterfall tab renders real data, responds to filters
- [x] Create figure function in `src/visualization/`
- [x] Wire into tab switching
- **Checkpoint**: Cost Waterfall tab renders real data, responds to filters ✓
### 9.6 Drug Switching Sankey chart (Tab 5)
- [ ] Create `dash_app/callbacks/sankey.py`: