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Data: Solver Evolutionary method

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Builds on the Solver of #327. method: evolutionary runs a genetic search
for models that aren't smooth: tournament selection, blend crossover and
Gaussian mutation inside the variable bounds, feasibility-first ranking
and integer rounding, then a compass search around the best member. It
stops when the population converges, when the best member stops
improving for a number of generations, or at the evaluation budget. A
seeded generator makes runs repeatable. Population size, mutation rate,
random seed, convergence and Require Bounds are options; the method and
its options are saved in the hidden solver_* names. The Solver
Parameters dialog offers the method.
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prxnvt
2026-10-11 22:09:10 -04:00
parent 3926d21aa9
commit fa2b9566fb
4 changed files with 436 additions and 17 deletions
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docs/gaps.md
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@@ -105,8 +105,11 @@ No alpha blockers: every core workflow passes the [alpha gate](roadmap.md#alpha-
data model (`data.fromWeb`, `data.relationships` missing). **Estimate:** 60–100 h.
### 13. Analysis tools: Solver, Analysis ToolPak, Forecast Sheet (F)
- `data.solver`, `data.analysisToolPak` missing. Forecast Sheet (`data.forecastSheet`) and the
FORECAST.ETS family are in; the sheet has no Forecast Start (hindcast) option yet. **Estimate:** 15–25 h.
- Solver (`data.solver`, #327) has Simplex LP with integer/binary branch and bound, a local
nonlinear method (augmented Lagrangian, not GRG) and the Evolutionary method; AllDifferent
constraints, the Solver Options dialog, reports and Load/Save Model remain. The Analysis ToolPak
(`data.analysisToolPak`) has 13 of 19 tools. Forecast Sheet (`data.forecastSheet`) and the
FORECAST.ETS family are in; the sheet has no Forecast Start (hindcast) option yet. **Estimate:** 12–20 h.
### 14. Page Layout view and print polish (U, F)
- Page Layout view landed (#329): paper view with rulers and in-place header/footer editing.
docs/target-app-parity.md
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@@ -87,7 +87,7 @@ performance 8, stability 8, localization 4, hardware 2, platforms 2, ecosystem 2
| PivotTables | 7 | ~65% | ~45% | 25–40 | Insert/Recommended, field list, three layouts, date grouping, show-values-as, refresh, calculated fields, XLSX round-trip. Missing: slicers, timelines, calculated items, PivotCharts, value/label filters, number grouping, GETPIVOTDATA, data-model pivots. Round-trip never checked in Excel |
| Charts and sparklines | 8 | ~50% | ~30% | 40–60 | 25 chart kinds, all 2-D. The chart model holds title, legend position, a data-labels flag, gridlines flag and axis titles; no axis scaling, trendlines, error bars, per-point formatting, chart sheets, 3-D, surface, map, Pareto. Several kinds don't survive XLSX round trip (open PRs #158, #161). [chart-parity.md](chart-parity.md) |
| Page layout, print, PDF | 5 | ~80% | ~55% | 12–20 | Page setup, print titles, breaks, Page Break Preview, headers/footers, PDF export and printing. No true Page Layout view; the PDF writer uses only the 14 standard fonts without embedding (no CJK or other non-Latin text in PDF); web print only exports (#141, #143) |
| What-if and analysis | 4 | ~50% | ~40% | 22–35 | Goal Seek, Scenario Manager, data tables, Analysis ToolPak (13 of 19 tools, no charts). Missing: Solver, Forecast Sheet, Analyze Data |
| What-if and analysis | 4 | ~50% | ~40% | 22–35 | Goal Seek, Scenario Manager, data tables, Analysis ToolPak (13 of 19 tools, no charts), Solver (Simplex LP, a local nonlinear method and Evolutionary; no reports or options dialog). Missing: Forecast Sheet, Analyze Data |
| Get & Transform, external data, data model | 5 | ~15% | ~10% | 60–100 | Import of CSV/TSV, JSON, HTML. No Power Query editor, no From Web, database or folder sources, no connections or refresh, no relationships or data model, no external workbook links (dropped with a warning) |
| Insert objects | 3 | ~55% | ~45% | 25–40 | Pictures, 8 shape kinds (Excel has ~170), text boxes, own icon set, ink with Ink to Shape, hyperlinks, checkboxes. Missing: SmartArt, WordArt, equations, signature line, objects, 3-D models, screenshot, pictures in cells (PR #105) |
| Review, comments, protection, collaboration | 4 | ~55% | ~40% | 35–55 | Threaded comments, notes, spelling (system dictionary), thesaurus, sheet and workbook protection, Allow Edit Ranges with Excel-compatible password hashes (#307). Missing: comment navigation, Show Changes, notes-to-comments conversion, accessibility checker, co-authoring, opening password-encrypted files (refused with a message since #17) |