{"uid":"cap_lFxpeRDZbvvLTXKTSC7Lt","slug":"sampling-observations-category-frequencies-trailing-mean-series-4eba01d6","name":"Sampling Observations — Category Frequencies + Trailing Mean Series","description":"Sampling observations — Category frequencies + Trailing mean series: Category frequencies + Trailing mean series for supplied sampling observations records (sample_value, sample_weight). Up to 200 rows; 2 independent reports using shared local analytical engines. No live lookup, prediction, professional assessment or external action. 0.01 USDC includes 2 supplied-data reports for up to 200 rows.","url":"https://market.datapackvibe.com/x402/assistant-ib26-analytics-15-103?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"rows":{"type":"array","items":{"type":"object","required":["row_id","dataset_group","date","sample_value","sample_weight"],"properties":{"date":{"type":"string","default":"","pattern":"^\\d{4}-\\d{2}-\\d{2}$","maxLength":10},"row_id":{"type":"string","default":"","maxLength":80,"minLength":1},"sample_value":{"type":["number","null"],"maximum":1000000000000,"minimum":-1000000000000},"dataset_group":{"type":"string","default":"","maxLength":80},"sample_weight":{"type":["number","null"],"maximum":1000000000000,"minimum":-1000000000000}},"additionalProperties":false},"default":[{"date":"2026-10-01","row_id":"row-1","sample_value":10,"dataset_group":"group-a","sample_weight":1},{"date":"2026-10-02","row_id":"row-2","sample_value":20,"dataset_group":"group-b","sample_weight":2},{"date":"2026-10-03","row_id":"row-3","sample_value":15,"dataset_group":"group-a","sample_weight":3},{"date":"2026-10-04","row_id":"row-4","sample_value":30,"dataset_group":"group-b","sample_weight":4}],"maxItems":200,"minItems":1},"field":{"enum":["sample_value","sample_weight"],"type":"string","default":"sample_value"},"window":{"type":"integer","default":2,"maximum":200,"minimum":2}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_YG7JImNp8QYPHALawMECL","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Computes category-frequency distributions and trailing moving-average series for up to 200 weighted sampling observation records in a single call.","exampleAgentPrompt":"Analyze my sampling observations — I have 150 rows with sample_value and sample_weight fields across two groups ('control' and 'treatment') dated from 2025-01-01 to 2025-06-30. Give me both category frequencies by dataset_group and a trailing mean series with a window of 7 for sample_value.","exampleUseCases":[{"title":"Survey response group frequency analysis","prompt":"I have 120 survey response records with sample values and weights, spread across 4 respondent groups. Can you compute how frequently each group appears and also give me a trailing mean of sample_value with a window of 5?"},{"title":"Quality control rolling average monitoring","prompt":"Here are 80 manufacturing sample observations recorded daily — each has a sample_value and a sample_weight. Run category frequencies by dataset_group and a trailing mean series using a window of 10 on sample_value so I can spot trends."},{"title":"Clinical trial weighted sample breakdown","prompt":"I've got 200 clinical trial sample records across two cohorts ('placebo' and 'active'), each with a value and a weight. Please compute the category frequencies for each cohort and a 14-day trailing mean of sample_weight."}],"resultDescription":"Returns two analytical reports for the submitted rows: (1) category frequencies showing how often each dataset_group appears (optionally weighted), and (2) a trailing mean series over the specified window size for the chosen field (sample_value or sample_weight), computed locally without any external lookups or predictions.","failureModes":["Fewer than 1 row submitted — request rejected","More than 200 rows submitted — exceeds maximum limit","Invalid date format (not YYYY-MM-DD) — validation error","sample_value or sample_weight outside allowed numeric range — rejected","Missing required fields (row_id, dataset_group, date) — schema validation failure","Window size less than 2 or greater than 200 — rejected","Payment not received or insufficient USDC — 402 response"],"whenToPreferThis":"Choose this endpoint when you need both a categorical frequency breakdown and a rolling/trailing mean time series computed together in one affordable call on up to 200 weighted sample observation records, without requiring any external data source, live lookup, or prediction service. Ideal for survey analysis, quality control monitoring, or any scenario where you have timestamped, grouped, weighted numeric samples and want descriptive statistics quickly.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-15T12:39:07.862Z","isFirstParty":false,"canonicalSlug":"sampling-observations-category-frequencies-trailing-mean-series-4eba01d6"}