{"uid":"cap_ZF40g4ybUp2kkmB_9EM5d","slug":"training-assessments-category-frequencies-explicit-missing-value-fill-fb23218b","name":"Training Assessments — Category Frequencies + Explicit Missing-Value Fill","description":"Training assessments — Category frequencies + Explicit missing-value fill: Category frequencies + Explicit missing-value fill for supplied training assessments records (pre_score, post_score). 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-11-112?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"rows":{"type":"array","items":{"type":"object","required":["row_id","course_group","date","pre_score","post_score"],"properties":{"date":{"type":"string","default":"","pattern":"^\\d{4}-\\d{2}-\\d{2}$","maxLength":10},"row_id":{"type":"string","default":"","maxLength":80,"minLength":1},"pre_score":{"type":["number","null"],"maximum":1000000000000,"minimum":-1000000000000},"post_score":{"type":["number","null"],"maximum":1000000000000,"minimum":-1000000000000},"course_group":{"type":"string","default":"","maxLength":80}},"additionalProperties":false},"default":[{"date":"2026-10-01","row_id":"row-1","pre_score":10,"post_score":1,"course_group":"group-a"},{"date":"2026-10-02","row_id":"row-2","pre_score":20,"post_score":2,"course_group":"group-b"},{"date":"2026-10-03","row_id":"row-3","pre_score":15,"post_score":3,"course_group":"group-a"},{"date":"2026-10-04","row_id":"row-4","pre_score":30,"post_score":4,"course_group":"group-b"}],"maxItems":200,"minItems":1},"field":{"enum":["pre_score","post_score"],"type":"string","default":"pre_score"},"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_h53R9mrMRpUEgvEjxiMyN","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 frequencies for course_group and fills missing values (zero, mean, or median) in pre_score or post_score for up to 200 training assessment rows, returning two analytical reports.","exampleAgentPrompt":"I have up to 200 training assessment rows with pre_score and post_score — can you compute category frequencies by course_group and fill any missing post_score values using median imputation?","exampleUseCases":[{"title":"Pre-training score gap analysis","prompt":"I have 150 training assessment records with course_group and pre_score columns — some pre_score values are missing. Can you compute the frequency of each course group and fill the missing pre_score values using the median?"},{"title":"Post-training completion report","prompt":"Can you analyze these 80 assessment records and tell me the category breakdown by course_group, then fill any null post_score values with zero so I have a complete dataset?"},{"title":"Multi-group training data cleanup","prompt":"I've got assessment data across groups group-a and group-b with some missing pre_score entries — can you give me the category frequency counts per group and impute the missing pre_scores using the mean?"}],"resultDescription":"Returns two reports: (1) a category frequency table showing counts per course_group value, and (2) the specified score column (pre_score or post_score) with missing values filled using the chosen method (zero, mean, or median). Both reports are computed locally from the supplied rows with no external lookups.","failureModes":["More than 200 rows submitted — request will be rejected or truncated","Invalid date format (not YYYY-MM-DD) causes validation error","row_id missing or empty string causes schema rejection","Unknown imputation method value outside zero/mean/median enum","Empty rows array fails minItems:1 constraint","Scores outside allowed numeric range rejected by schema"],"whenToPreferThis":"Choose this endpoint when you need two simultaneous analytical outputs — category frequency distribution by course_group AND explicit missing-value imputation on a score field — for training assessment data in a single low-cost call. It is ideal for educational data pipelines where you want to audit group representation and clean null scores before downstream analysis, without any external prediction or professional evaluation.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-29T12:52:58.488Z","isFirstParty":false,"canonicalSlug":"training-assessments-category-frequencies-explicit-missing-value-fill-fb23218b"}