Commit Graph
8 Commits
Author SHA1 Message Date
Shirish Veerabattini 993c108660 functions: share the argument-count rule between call and entry
FnSpec::accepts holds the arity check (including Excel's 255-argument
limit) that functions::call and the entry check both use, so entry also
refuses 256 arguments to a variadic function. The evaluator's own check
in calc is unchanged.

Claude-Session: https://claude.ai/code/session_01BGBBGBC2gRpQ7GDuwQ6WPt
2026-10-11 15:37:09 -05:00
Brandon Thomas 5360a77505 Merge remote-tracking branch 'origin/main' into fix-325
# Conflicts:
#	ROADMAP.md
#	crates/engine/src/cmd/mod.rs
#	crates/ui-egui/src/dialogs.rs
#	docs/gaps.md
#	docs/parity-checklist.md
#	docs/ui-parity.md
2026-10-11 13:12:41 -04:00
Brandon Thomas 867c5fd1f1 Merge pull request #317 from vangel76/feat/forecast-ets
Functions: FORECAST.ETS, .CONFINT, .SEASONALITY and .STAT (#314)

# Conflicts:
#	README.md
#	ROADMAP.md
#	docs/function-parity.md
#	docs/gaps.md
2026-10-11 12:05:55 -04:00
vangel76andClaude Opus 5.5 c2d2f22e6a Data: Forecast Sheet (data.forecastSheet) (#322)
New sheet before the active one with the sorted history, a FORECAST.ETS
forecast column, FORECAST.ETS.CONFINT lower/upper bounds, an optional
FORECAST.ETS.STAT table, an Excel table over the data and a line or column
chart. Parameters: timeline/values (default: the selection's first two
columns), end or periods, confidence interval, seasonality, missing-point
fill, duplicate aggregation, statistics, chart kind. Data ribbon button
opens a form dialog; programmatic calls never do. gridcraft-functions
exports Timeline to continue a timeline (numeric step or calendar months).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-11 12:54:30 +02:00
vangel76andClaude Opus 5.5 a1dc03a484 Functions: FORECAST.ETS, .CONFINT, .SEASONALITY and .STAT (#314)
AAA exponential smoothing (Hyndman et al. 2008, ETS(A,A,A)) over an evenly
spaced timeline: documented seasonality, data completion and aggregation
arguments, calendar-month date timelines, autocorrelation seasonality
detection, state-space prediction intervals, statistic types 1-8.
Smoothing parameters minimise the in-sample SSE (grid + clamped
Nelder-Mead). XLSX export treats the family's range arguments as
array-taking (no spurious dynamic-array metadata), FORECAST/FORECAST.LINEAR
included.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-11 12:42:52 +02:00
vangel76andClaude Opus 5.5 a2894eff83 Functions: PERCENTOF and EUROCONVERT (#279)
PERCENTOF = SUM(subset) / SUM(all), written as _xlfn.PERCENTOF.
EUROCONVERT uses the fixed EU conversion rates for the currencies the
function documents, with currency rounding and triangulation precision.
New Add-in category for EUROCONVERT.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-11 11:56:18 +02:00
Brandon ThomasandClaude Opus 5.5 488e12de31 Rename SheetCraft to GridCraft everywhere (crates, apps, bundle ids, packaging, docs)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-06 01:39:08 -04:00
Brandon ThomasandClaude Opus 5.5 1ba9daa263 M0: foundation — core, numfmt, formula, functions (478), model, calc, xlsx/csv, engine
Clean-room spreadsheet engine: addresses/values/dates, Excel number formats,
formula parser/printer/reference adjustment, worksheet function library,
copy-on-write workbook model, dependency-driven recalculation with dynamic
arrays, XLSX/CSV I/O, and a command engine (cell entry, clipboard, fill,
formatting, sheets, sort/filter, tables, charts, CF, names, view, file).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-05 23:18:10 -04:00