{"uid":"cap_ucP9UIWDbumRKmFhHVFpl","slug":"validator-uptime-two-measure-correlation-explicit-missing-value-fill-24bca062","name":"Validator Uptime Two-Measure Correlation + Explicit Missing-Value Fill","description":"Validator uptime — Two-measure correlation + Explicit missing-value fill: Two-measure correlation + Explicit missing-value fill for supplied validator uptime records (online_minutes, observed_minutes). 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-finance-12-184?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"rows":{"type":"array","items":{"type":"object","required":["row_id","instrument_group","date","online_minutes","observed_minutes"],"properties":{"date":{"type":"string","default":"","pattern":"^\\d{4}-\\d{2}-\\d{2}$","maxLength":10},"row_id":{"type":"string","default":"","maxLength":80,"minLength":1},"online_minutes":{"type":["number","null"],"maximum":1000000000000,"minimum":-1000000000000},"instrument_group":{"type":"string","default":"","maxLength":80},"observed_minutes":{"type":["number","null"],"maximum":1000000000000,"minimum":-1000000000000}},"additionalProperties":false},"default":[{"date":"2026-10-01","row_id":"row-1","online_minutes":10,"instrument_group":"group-a","observed_minutes":1},{"date":"2026-10-02","row_id":"row-2","online_minutes":20,"instrument_group":"group-b","observed_minutes":2},{"date":"2026-10-03","row_id":"row-3","online_minutes":15,"instrument_group":"group-a","observed_minutes":3},{"date":"2026-10-04","row_id":"row-4","online_minutes":30,"instrument_group":"group-b","observed_minutes":4}],"maxItems":200,"minItems":1},"field":{"enum":["online_minutes","observed_minutes"],"type":"string","default":"online_minutes"},"method":{"enum":["zero","mean","median"],"type":"string","default":"median"}}},"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_zpHbctTO5khPvnh8kXz0r","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 Pearson/Spearman correlation between online_minutes and observed_minutes for validator uptime records, and fills missing values using zero, mean, or median imputation — up to 200 rows, 2 reports per call.","exampleAgentPrompt":"I have 150 rows of validator uptime data with online_minutes and observed_minutes fields — some values are missing. Can you compute the correlation between those two measures and fill in the missing online_minutes using median imputation?","exampleUseCases":[{"title":"Validator uptime correlation audit","prompt":"I've got daily validator uptime records for the past 6 months, up to 180 rows, with online_minutes and observed_minutes per group. Run a two-measure correlation between those fields and fill any missing online_minutes values using the median — I want both reports."},{"title":"Staking pool data quality check","prompt":"Before I publish our staking pool uptime dashboard, can you fill missing observed_minutes values using mean imputation and compute the correlation between online_minutes and observed_minutes across our validator groups? I have about 90 rows of data."},{"title":"Multi-group validator performance analysis","prompt":"We're comparing uptime across multiple instrument groups — I have 200 rows with online_minutes and observed_minutes, but some observed_minutes are null. Please fill those with zero and then show me the correlation between the two measures."}],"resultDescription":"Returns two analytical reports: (1) a two-measure correlation report showing the statistical relationship (e.g. Pearson/Spearman coefficient) between online_minutes and observed_minutes across the supplied rows; and (2) an explicit missing-value fill report showing which rows had nulls in the specified field and what values were imputed using the chosen method (zero, mean, or median). No external data is fetched; all computation is local.","failureModes":["Fewer than 1 row supplied — returns validation error","More than 200 rows submitted — request rejected with row limit error","Invalid date format (not YYYY-MM-DD) — schema validation failure","Both online_minutes and observed_minutes are entirely null — correlation cannot be computed","Unknown fill method enum value — rejected by schema validation","Row missing required fields (row_id, instrument_group, date) — schema error"],"whenToPreferThis":"Choose this endpoint when you need both statistical correlation analysis and missing-value imputation for validator uptime data (online_minutes vs observed_minutes) in a single low-cost call. It is ideal for offline/batch analytical workflows on datasets up to 200 rows where no live blockchain lookup, external prediction, or real-time monitoring is needed. Prefer it over generic analytics platforms when the data is already structured in the expected schema and you want a simple, reproducible, fully local computation at minimal cost ($0.01 USDC for 2 reports).","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-26T12:33:38.661Z","isFirstParty":false,"canonicalSlug":"validator-uptime-two-measure-correlation-explicit-missing-value-fill-24bca062"}