{"uid":"cap_pOkyBz-e4Wbnn4gldE3gd","slug":"market-survey-observations-adjacent-row-changes-two-measure-correlation-90286469","name":"Market Survey Observations — Adjacent Row Changes + Two-Measure Correlation","description":"Market survey observations — Adjacent row changes + Two-measure correlation: Adjacent row changes + Two-measure correlation for supplied market survey observations records (respondent_count, 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-company-06-158?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"rows":{"type":"array","items":{"type":"object","required":["row_id","company_group","date","respondent_count","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},"company_group":{"type":"string","default":"","maxLength":80},"sample_weight":{"type":["number","null"],"maximum":1000000000000,"minimum":-1000000000000},"respondent_count":{"type":["number","null"],"maximum":1000000000000,"minimum":-1000000000000}},"additionalProperties":false},"default":[{"date":"2026-10-01","row_id":"row-1","company_group":"group-a","sample_weight":1,"respondent_count":10},{"date":"2026-10-02","row_id":"row-2","company_group":"group-b","sample_weight":2,"respondent_count":20},{"date":"2026-10-03","row_id":"row-3","company_group":"group-a","sample_weight":3,"respondent_count":15},{"date":"2026-10-04","row_id":"row-4","company_group":"group-b","sample_weight":4,"respondent_count":30}],"maxItems":200,"minItems":1},"field":{"enum":["respondent_count","sample_weight"],"type":"string","default":"respondent_count"}}},"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_lfhEXNFp1uUydYXUqsyKt","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 adjacent row changes and two-measure correlation for market survey observation data (respondent_count and sample_weight) across up to 200 rows.","exampleAgentPrompt":"I have market survey records for two company groups across four dates — can you run adjacent row change analysis and two-measure correlation on the respondent_count field for up to 200 rows and give me both reports?","exampleUseCases":[{"title":"Tracking survey response shifts over time","prompt":"I have daily market survey data for group-a and group-b across October, with respondent counts and sample weights for each day. Can you compute adjacent row changes and the correlation between respondent_count and sample_weight across all rows?"},{"title":"Comparing survey panel consistency across groups","prompt":"We ran a brand-tracking survey across multiple company groups and dates. Can you analyze row-to-row changes in sample_weight and show how it correlates with respondent_count across the full dataset?"},{"title":"Auditing survey weighting against response volume","prompt":"I want to check whether our survey sample weights are moving in sync with respondent counts. Can you run the adjacent row changes and two-measure correlation reports on my 150-row survey dataset using the respondent_count field?"}],"resultDescription":"Returns two independent statistical reports: (1) an adjacent row changes report showing how the selected measure (respondent_count or sample_weight) shifts from one row to the next, and (2) a two-measure correlation report quantifying the relationship between respondent_count and sample_weight across the supplied rows. Both reports are computed locally from the supplied data with no external lookups.","failureModes":["Missing required fields (row_id, date, company_group) causes validation error","More than 200 rows submitted — request rejected with maxItems error","Invalid date format (not YYYY-MM-DD) triggers pattern validation failure","Both measure values null for all rows — correlation computation may be undefined","Single-row input — adjacent row changes report produces no deltas"],"whenToPreferThis":"Choose this endpoint when you have up to 200 rows of market survey panel data with respondent counts and sample weights, and need both a sequential row-difference analysis and a cross-measure correlation in a single low-cost call ($0.01 USDC). It is ideal for offline/batch analytical passes over survey exports where no live data lookup, prediction, or external integration is needed.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-15T06:40:03.071Z","isFirstParty":false,"canonicalSlug":"market-survey-observations-adjacent-row-changes-two-measure-correlation-90286469"}