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ROADMAP.md, docs/chart-parity.md, docs/gaps.md, docs/target-app-parity.md, docs/ui-parity.md: the header change notes combine this branch's note with main's, dated today; main's revision and progress rows stay and this branch's rows are re-dated on top. Code merged without conflict.
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2026-11-02 01:30:43 -05:00
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# Gaps
> **Last reviewed:** 2026-10-11 · **Last updated:** 2026-11-01 · **Change:** minor (§4: chart resizing is no longer a gap; earlier: §13: Solver Options; earlier: §13: Solver Load/Save Model and Reset All) · **Target:** Microsoft Excel (Microsoft 365)
> **Last reviewed:** 2026-10-11 · **Last updated:** 2026-11-02 · **Change:** minor (§4: chart resizing is no longer a gap; earlier: §13: Analysis ToolPak has all 19 tools; earlier: §4: chart data tables implemented with XLSX round-trip and print/PDF; earlier: §13: Solver Options; earlier: §13: Solver Load/Save Model and Reset All) · **Target:** Microsoft Excel (Microsoft 365)
Every known shortfall against Excel, one entry each, ranked by user impact (what blocks someone
using GridCraft for real work first). This is the work list: pick from the top, check the open
@@ -44,6 +44,7 @@ No alpha blockers: every core workflow passes the [alpha gate](roadmap.md#alpha-
### 4. Charts lose options on round trip; shallow chart model (F, FF)
- **Missing:** axis scaling, label options, error bars, per-point formatting.
- **Added:** data tables beneath column, bar, line, area and compatible combo charts, with legend keys, border controls, live source values, native XLSX round-trip and print/PDF.
- **Evidence:** `Chart` holds only title, legend position, two flags and axis titles
(`crates/model/src/features.rs`); all 2-D kinds survive XLSX round trip (#158, #161); charts
resize from eight handles (#190). Smooth lines (#62), Switch Row/Column (#116) and trendlines
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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, including Forecast Start (hindcast, #785). **Estimate:** 15–25 h.
- Forecast Sheet (`data.forecastSheet`) and the FORECAST.ETS family are in, including Forecast
Start (hindcast, #785).
- Solver (`data.solver`, #327) has Simplex LP with integer/binary branch and bound, a local
nonlinear method (augmented Lagrangian, not GRG), the Evolutionary method, and Answer and
Limits reports. Report refusal leaves the solution, saved model and history unchanged; a
@@ -126,9 +127,8 @@ No alpha blockers: every core workflow passes the [alpha gate](roadmap.md#alpha-
model on cells of its sheet and reads it back; Reset All removes it. Solver Options sets the
evaluation limit, Integer Optimality and the Evolutionary options, which are saved with the
model. AllDifferent constraints and the Sensitivity and Population reports 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.
- The Analysis ToolPak (`data.analysisToolPak`) has all 19 of Excel's tools; their chart output
remains. **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.
@@ -185,7 +185,9 @@ No alpha blockers: every core workflow passes the [alpha gate](roadmap.md#alpha-
| Date | Change | Summary |
|---|---|---|
| 2026-11-01 | minor | §4: charts, like every floating object, move and resize from eight handles (#190), so resizing is no longer listed as missing; the evidence is one paragraph again, without the stale "PRs #158, #161 open" |
| 2026-11-02 | minor | §4: charts, like every floating object, move and resize from eight handles (#190), so resizing is no longer listed as missing; the evidence is one paragraph again, without the stale "PRs #158, #161 open" |
| 2026-11-01 | minor | §13: the Analysis ToolPak has all 19 of Excel's tools (two-factor Anova with and without replication, z-Test, Fourier Analysis, Random Number Generation, Sampling); its chart output remains. The stale "`data.solver`, `data.analysisToolPak` missing" and "no Forecast Start" sentences removed |
| 2026-11-01 | minor | §4: chart data tables implemented for column, bar, line, area and compatible combo charts, with legend keys and border settings, live source values, XLSX round-trip and print/PDF; other chart gaps remain. |
| 2026-10-31 | minor | §13: Solver Options (Max Evaluations, Integer Optimality and the Evolutionary options), saved with the model |
| 2026-10-31 | minor | §13: Solver Load/Save Model (`data.solverSaveModel`, `data.solverLoadModel`) and Reset All (`data.solverReset`), with buttons in the Solver Parameters dialog |
| 2026-10-24 | minor | §8: PivotTable Enable show details: `pivot.options` `enableShowDetails` turns Show Details off for a PivotTable, read and written in XLSX as `enableDrill` |