{"uid":"cap_tSq_UEbts-9ug8Yslyndw","slug":"null-coverage-base-100-series-two-measure-correlation-d17800c1","name":"Null Coverage — Base-100 Series + Two-Measure Correlation","description":"Null coverage — Base-100 series + Two-measure correlation: Base-100 series + Two-measure correlation for supplied null coverage records (missing_values, total_values). 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-03-165?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"rows":{"type":"array","items":{"type":"object","required":["row_id","dataset_group","date","missing_values","total_values"],"properties":{"date":{"type":"string","default":"","pattern":"^\\d{4}-\\d{2}-\\d{2}$","maxLength":10},"row_id":{"type":"string","default":"","maxLength":80,"minLength":1},"total_values":{"type":["number","null"],"maximum":1000000000000,"minimum":-1000000000000},"dataset_group":{"type":"string","default":"","maxLength":80},"missing_values":{"type":["number","null"],"maximum":1000000000000,"minimum":-1000000000000}},"additionalProperties":false},"default":[{"date":"2026-10-01","row_id":"row-1","total_values":1,"dataset_group":"group-a","missing_values":10},{"date":"2026-10-02","row_id":"row-2","total_values":2,"dataset_group":"group-b","missing_values":20},{"date":"2026-10-03","row_id":"row-3","total_values":3,"dataset_group":"group-a","missing_values":15},{"date":"2026-10-04","row_id":"row-4","total_values":4,"dataset_group":"group-b","missing_values":30}],"maxItems":200,"minItems":1},"field":{"enum":["missing_values","total_values"],"type":"string","default":"missing_values"},"base_index":{"type":"integer","default":0,"maximum":199,"minimum":0}}},"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_Z_z7iWpnK-rq1niP_jOSm","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 a base-100 index series and a two-measure Pearson/rank correlation report for null coverage data (missing_values and total_values) supplied in up to 200 rows.","exampleAgentPrompt":"I have 50 rows of null coverage data with missing_values and total_values for each date — can you generate a base-100 index series starting at row 0 for missing_values, plus a correlation report between the two measures?","exampleUseCases":[{"title":"Monthly data completeness trend indexing","prompt":"I've got daily null coverage records across two dataset groups for the past quarter — please build a base-100 index series anchored at the first row for missing_values so I can see how completeness has trended over time."},{"title":"Correlation check between missing and total counts","prompt":"Can you run a two-measure correlation between missing_values and total_values across all my 120 null coverage rows? I want to know how strongly these two metrics move together."},{"title":"Group-level null rate baseline comparison","prompt":"I have null coverage records for group-a and group-b over 80 days. Build me a base-100 index starting at row 0 on total_values and also show the correlation between missing_values and total_values so I can compare the two groups."}],"resultDescription":"Returns two analytical reports: (1) a base-100 rebased index series for the selected field (missing_values or total_values) anchored at the specified base_index row, showing relative change over the supplied rows; and (2) a two-measure correlation report quantifying the statistical relationship between missing_values and total_values across all supplied rows. Both reports are computed locally with no external data lookups.","failureModes":["Missing required fields (row_id, date, missing_values, total_values) cause validation errors","Submitting more than 200 rows returns an array-length validation error","Invalid date format (not YYYY-MM-DD) causes a pattern validation failure","base_index pointing to a null or missing field value may produce undefined index anchoring","All-null missing_values or total_values columns may produce undefined correlation results","Payment not included or incorrect USDC amount results in 402 Payment Required"],"whenToPreferThis":"Choose this endpoint when you already have null coverage data in hand (missing_values and total_values per row) and need two specific offline statistical outputs — a base-100 rebased time series and a cross-measure correlation — without any live data fetching, prediction, or external enrichment. It is ideal for lightweight data quality audits where both a trend index and a correlation check are needed in a single call at minimal cost.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-18T00:58:17.720Z","isFirstParty":false,"canonicalSlug":"null-coverage-base-100-series-two-measure-correlation-d17800c1"}