datasciresearch/weak-moment-location-scale

Task gallery / Data processing / data science / Version 1

Reference solution (oracle): Pass
No-op resistance check: Pass
QA verdict: ACCEPT-WITH-DOCUMENTED-GAPS (sfdata2-pr610-final-signoff.md: 70 PASS / 4 FAIL /
Aggregate eligibility: Eligible version

The task

Please add weaktfit(data, df, bandwidth, orders=(0,1,2), weights=None, bounds=((-2,2),(0.5,3)), center=0.0) to statsmodels.robust. We need location and scale estimation for heavy-tailed data by matching Gaussian-weighted moments. Document the function, preserve existing robust estimators, and commit the change. Use the Student-t density f(x;mu,s)=Gamma((df+1)/2)/(Gamma(df/2)sqrt(dfpi)s) (1+((x-mu)/s)2/df)(-(df+1)/2)…

Excerpt only; not a complete executable task specification. Task ID sfdata2/weak-moment-location-scale · version 1. Selection status: known curated delivery cohort.

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Results by model and effort

This exact task version only. Every rate is passes / valid runs with a Wilson 95% interval; n≤2 remains counts only. Macro aggregation does not apply within a single task. Baselines are summarized in the quality gates, not ranked. A passed no-op resistance check means that doing nothing did not solve the task.

Current evidence

Model / effort	Verifier result [95% Wilson]	Diagnostic labels / valid	HARNESS_ERROR · excluded	Outcome classes
GPT-6 Astra · medium	0/5 · 0.0% [0.0%, 43.4%]	5 / 5	1	GOOD_FAILURE: 5 BAD_FAILURE: 0 GOOD_SUCCESS: 0 BAD_SUCCESS: 0

Legacy evidence

Model / effort	Verifier result [95% Wilson]	Diagnostic labels / valid	HARNESS_ERROR · excluded	Outcome classes

Difficulty, with uncertainty

Selected-best difficulty: 100.0% [56.6%, 100.0%]. This is one minus the best measured current-row pass rate among rows with at least five valid runs.

The maximum is selected from the observed rows, so the estimate is optimistic. Its Wilson interval is not adjusted for model selection. “Hard” requires qualifying GOOD_FAILURE evidence; the threshold flag additionally requires the interval and recorded quality gates to meet the documented rule. This is not independent validation. Threshold flag: yes.

Every recorded run

18 recorded trials, including controls. Diagnostic labels do not replace verifier reward. Labels and quality checks are source declarations, not independently attested here. Internal evidence remains private; a missing public URL is shown explicitly. Records with invalid or absent rewards are not scored.

Run / model	Date / source	Reward / eligibility	Diagnostic class / source	Resources	Evidence
`weak-moment-location-scale__9oN2vrN` oracle@@	Oct 18, 2026 delivery	1 · valid	No diagnostic label derived	Tokens: — Turns: — Cost: —	Not publicly available
`weak-moment-location-scale__RoNHeXf` oracle@@	Oct 18, 2026 delivery	1 · valid	No diagnostic label derived	Tokens: — Turns: — Cost: —	Not publicly available
`weak-moment-location-scale__Ucxi2iC` oracle@@	Oct 18, 2026 delivery	1 · valid	No diagnostic label derived	Tokens: — Turns: — Cost: —	Not publicly available
`weak-moment-location-scale__hAPZqNt` nop@@	Oct 18, 2026 delivery	0 · valid	No diagnostic label derived	Tokens: — Turns: — Cost: —	Not publicly available
`weak-moment-location-scale__tfRS5NS` nop@@	Oct 18, 2026 delivery	0 · valid	No diagnostic label derived	Tokens: — Turns: — Cost: —	Not publicly available
`weak-moment-location-scale__xbigcSs` nop@@	Oct 18, 2026 delivery	0 · valid	No diagnostic label derived	Tokens: — Turns: — Cost: —	Not publicly available
`weak-moment-location-scale__bihDJzP` GPT-6 Astra · medium	Oct 18, 2026 delivery	0 · valid	GOOD_FAILURE independent-review	Tokens: 45,104 Turns: 89 Cost: —	Not publicly available
`weak-moment-location-scale__3ecgcrX` nop@@	Oct 18, 2026 delivery	0 · valid	No diagnostic label derived	Tokens: — Turns: — Cost: —	Not publicly available
`weak-moment-location-scale__4iJCRmp` nop@@	Oct 18, 2026 delivery	0 · valid	No diagnostic label derived	Tokens: — Turns: — Cost: —	Not publicly available
`weak-moment-location-scale__7xQyKWx` oracle@@	Oct 18, 2026 delivery	1 · valid	No diagnostic label derived	Tokens: — Turns: — Cost: —	Not publicly available
`weak-moment-location-scale__D7fE8iE` nop@@	Oct 18, 2026 delivery	0 · valid	No diagnostic label derived	Tokens: — Turns: — Cost: —	Not publicly available
`weak-moment-location-scale__Tz9Yfjn` oracle@@	Oct 18, 2026 delivery	1 · valid	No diagnostic label derived	Tokens: — Turns: — Cost: —	Not publicly available
`weak-moment-location-scale__bS5uekS` oracle@@	Oct 18, 2026 delivery	1 · valid	No diagnostic label derived	Tokens: — Turns: — Cost: —	Not publicly available
`weak-moment-location-scale__4Bwx2pX` GPT-6 Astra · medium	Oct 18, 2026 delivery	0 · valid	GOOD_FAILURE independent-review	Tokens: 48,516 Turns: 89 Cost: —	Not publicly available
`weak-moment-location-scale__86pQ8up` GPT-6 Astra · medium	Oct 18, 2026 delivery	No reward · excludedno_reward	HARNESS_ERROR derived	Tokens: 3,911 Turns: 12 Cost: —	Not publicly available
`weak-moment-location-scale__aJTo9ik` GPT-6 Astra · medium	Oct 18, 2026 delivery	0 · valid	GOOD_FAILURE independent-review	Tokens: 53,900 Turns: 110 Cost: —	Not publicly available
`weak-moment-location-scale__bXpbV2W` GPT-6 Astra · medium	Oct 18, 2026 delivery	0 · valid	GOOD_FAILURE independent-review	Tokens: 42,570 Turns: 79 Cost: —	Not publicly available
`weak-moment-location-scale__eXQg4uo` GPT-6 Astra · medium	Oct 18, 2026 delivery	0 · valid	GOOD_FAILURE independent-review	Tokens: 44,065 Turns: 70 Cost: —	Not publicly available