{"uid":"cap_VEhVgqPRfdQ1ql0do7L1l","slug":"research-samples-string-normalisation-equal-width-histogram-ae4b2fe9","name":"Research Samples String Normalisation + Equal-Width Histogram","description":"Research samples — String normalisation + Equal-width histogram: String normalisation + Equal-width histogram for supplied research samples 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-education-07-031?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"bins":{"type":"integer","default":5,"maximum":30,"minimum":1},"rows":{"type":"array","items":{"type":"object","required":["row_id","course_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},"course_group":{"type":"string","default":"","maxLength":80},"sample_value":{"type":["number","null"],"maximum":1000000000000,"minimum":-1000000000000},"sample_weight":{"type":["number","null"],"maximum":1000000000000,"minimum":-1000000000000}},"additionalProperties":false},"default":[{"date":"2026-10-01","row_id":"row-1","course_group":"group-a","sample_value":10,"sample_weight":1},{"date":"2026-10-02","row_id":"row-2","course_group":"group-b","sample_value":20,"sample_weight":2},{"date":"2026-10-03","row_id":"row-3","course_group":"group-a","sample_value":15,"sample_weight":3},{"date":"2026-10-04","row_id":"row-4","course_group":"group-b","sample_value":30,"sample_weight":4}],"maxItems":200,"minItems":1},"field":{"enum":["sample_value","sample_weight"],"type":"string","default":"sample_value"}}},"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_SRERLXaPjdIQlneXVzxg4","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":"Runs two local analytical reports — string normalisation and equal-width histogram — on up to 200 supplied research sample records with sample_value and sample_weight fields.","exampleAgentPrompt":"Can you run string normalisation and an equal-width histogram with 10 bins on my research sample data — here are 50 rows with row_id, course_group, date, sample_value, and sample_weight — and use sample_value as the target field?","exampleUseCases":[{"title":"Education cohort score distribution","prompt":"I have 120 research sample records from two course groups with dates, sample values, and weights. Can you normalize the string fields and generate a 5-bin equal-width histogram on sample_value so I can see how scores are distributed?"},{"title":"Weighted sample analytics for experiment","prompt":"Run both the string normalisation and equal-width histogram reports on my 80-row experiment dataset — each row has a row_id, course_group, date, sample_value, and sample_weight — using 8 bins on the sample_weight field."},{"title":"Quick data quality check on survey samples","prompt":"I've got 40 survey sample rows with course_group labels and numeric sample_value readings. Can you normalise the strings and bucket the values into a 5-bin histogram so I can spot any outliers or skew?"}],"resultDescription":"Two analytical reports delivered together: (1) a string normalisation report that cleans and standardises text fields across the supplied rows, and (2) an equal-width histogram report showing bin edges, bin counts, and distribution summary for the chosen numeric field (sample_value or sample_weight) across up to 200 input records.","failureModes":["More than 200 rows submitted — request will be rejected or truncated","Missing required fields (row_id, sample_value, sample_weight, date, course_group) causes validation error","Invalid date format (not YYYY-MM-DD) triggers schema rejection","bins parameter outside 1–30 range causes validation failure","Null values in sample_value or sample_weight may be excluded from histogram computation","Payment not provided or insufficient USDC causes 402 response"],"whenToPreferThis":"Choose this endpoint when you need both string normalisation and a histogram computed together on the same batch of research sample records in a single call, at low cost ($0.01 USDC for both reports). It is well-suited for education research datasets with course group labels, date-stamped samples, and numeric value/weight pairs of up to 200 rows, where no external lookup or live data is required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T12:45:03.170Z","isFirstParty":false,"canonicalSlug":"research-samples-string-normalisation-equal-width-histogram-ae4b2fe9"}