{"Entry":{"collection":"func","key":"covar-samp","name":"covar_samp","aliases":[],"metadata":{"changed_in":[],"changes":[{"descriptions_changed":false,"doc_overhaul":false,"from":"8.1","group_changed":null,"signatures":{"added":[],"removed":[]},"status":"added","to":"8.2"},{"descriptions_changed":false,"doc_overhaul":true,"from":"12","group_changed":null,"signatures":{"added":[],"removed":[]},"status":"changed","to":"13"}],"content_hash":"6cf0c09477e775bc29d70286d057282096c010000cfbe447d7d6b6ee0e889b75","first_version":"8.2","group":"aggregate","group_label":"Aggregate Functions","groups":["aggregate"],"imported_at":"2026-09-27T17:57:28.919344+08:00","last_version":"20","name":"covar_samp","name_key":"covar_samp","position":21011,"present_in":["8.2","8.3","8.4","9.0","9.1","9.2","9.3","9.4","9.5","9.6","10","11","12","13","14","15","16","17","18","19","20"],"signature":"covar_samp ( Y double precision, X double precision ) → double precision","signature_count":1,"slug":"covar-samp","source_rev":"b7bd9cda","summary":"Computes the sample covariance.","summary_zh":""}},"Definition":{"Collection":"func","Key":"covar-samp","SourceDatabase":"center","Version":"18","SourceTable":"func","SourceKey":"covar-samp","SourceRevision":"b7bd9cda","Facts":{"description":"Computes the sample covariance.","description_html":"Computes the sample covariance.","description_zh":"","description_zh_html":"","doc":{"anchor":"FUNCTIONS-AGGREGATE-STATISTICS-TABLE","file":"functions-aggregate.html","slug":"18"},"group":"aggregate","group_label":"Aggregate Functions","lang":"en","layout":"table-new","pages":["functions-aggregate.html"],"prose_only":false,"signatures":[{"description":"Computes the sample covariance.","description_html":"Computes the sample covariance.","description_zh":"","description_zh_html":"","examples":[],"html":"\u003ccode class=\"function\"\u003ecovar_samp\u003c/code\u003e ( \u003cem class=\"parameter\"\u003e\u003ccode\u003eY\u003c/code\u003e\u003c/em\u003e \u003ccode class=\"type\"\u003edouble precision\u003c/code\u003e, \u003cem class=\"parameter\"\u003e\u003ccode\u003eX\u003c/code\u003e\u003c/em\u003e \u003ccode class=\"type\"\u003edouble precision\u003c/code\u003e ) → \u003ccode class=\"returnvalue\"\u003edouble precision\u003c/code\u003e","returns":"double precision","text":"covar_samp ( Y double precision, X double precision ) → double precision","zh_from":""}],"zh_from":""},"ManualEvidence":{"doc":{"anchor":"FUNCTIONS-AGGREGATE-STATISTICS-TABLE","file":"functions-aggregate.html","slug":"18"}},"MeasuredEvidence":{}},"Text":{"Collection":"func","Key":"covar-samp","SourceDatabase":"pgweb","Version":"18","Locale":"zh-Hans","Title":"covar_samp","Summary":"计算样本协方差。","BodyHTML":"计算样本协方差。\u003cpre\u003ecovar_samp ( Y double precision, X double precision ) → double precision\u003c/pre\u003e计算样本协方差。","SourceRevision":"ca936764","ContentHash":"5e9693ce84bba0284d7f91162f268d7275e84ef317513eb75c7d7a9b0f69ca73","Payload":{"description_zh":"计算样本协方差。","description_zh_html":"计算样本协方差。","signatures":[{"description_zh":"计算样本协方差。","description_zh_html":"计算样本协方差。","returns":"double precision","text":"covar_samp ( Y double precision, X double precision ) → double precision","zh_from":"doc"}],"zh_from":"doc"}},"RequestedLocale":"zh-Hans","Fallback":false,"Versions":["10","11","12","13","14","15","16","17","18","19","20","8.2","8.3","8.4","9.0","9.1","9.2","9.3","9.4","9.5","9.6"],"Locales":["en","zh-Hans"],"Signatures":[{"Version":"18","Ordinal":0,"Hash":"3a0a7cafc81e967e5ce0993863660d3e2fc27eaaa5f41b77afa6e7c111e77049","Text":"covar_samp ( Y double precision, X double precision ) → double precision","Returns":"double precision","Payload":{"description":"Computes the sample covariance.","description_html":"Computes the sample covariance.","description_zh":"","description_zh_html":"","examples":[],"html":"\u003ccode class=\"function\"\u003ecovar_samp\u003c/code\u003e ( \u003cem class=\"parameter\"\u003e\u003ccode\u003eY\u003c/code\u003e\u003c/em\u003e \u003ccode class=\"type\"\u003edouble precision\u003c/code\u003e, \u003cem class=\"parameter\"\u003e\u003ccode\u003eX\u003c/code\u003e\u003c/em\u003e \u003ccode class=\"type\"\u003edouble precision\u003c/code\u003e ) → \u003ccode class=\"returnvalue\"\u003edouble precision\u003c/code\u003e","returns":"double precision","text":"covar_samp ( Y double precision, X double precision ) → double precision","zh_from":""}}],"Spellings":null,"SQLState":null,"Evidence":null}