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sum(X) * sum(Y)/N.","summary_zh":""}},"Definition":{"Collection":"func","Key":"regr-sxy","SourceDatabase":"center","Version":"18","SourceTable":"func","SourceKey":"regr-sxy","SourceRevision":"wiki-repair-20261023:666d619fb6d08ba2506219ea4afe654ba6c4a00a8ddf90101eb0abb19f17a60a","Facts":{"description":"Computes the “sum of products” of independent times dependent variables, sum(X*Y) - sum(X) * sum(Y)/N.","description_html":"Computes the \u003cspan class=\"quote\"\u003e“\u003cspan class=\"quote\"\u003esum of products\u003c/span\u003e”\u003c/span\u003e of independent times dependent variables, \u003ccode class=\"literal\"\u003esum(\u003cem class=\"parameter\"\u003e\u003ccode\u003eX\u003c/code\u003e\u003c/em\u003e*\u003cem class=\"parameter\"\u003e\u003ccode\u003eY\u003c/code\u003e\u003c/em\u003e) - sum(\u003cem class=\"parameter\"\u003e\u003ccode\u003eX\u003c/code\u003e\u003c/em\u003e) * sum(\u003cem class=\"parameter\"\u003e\u003ccode\u003eY\u003c/code\u003e\u003c/em\u003e)/\u003cem class=\"parameter\"\u003e\u003ccode\u003eN\u003c/code\u003e\u003c/em\u003e\u003c/code\u003e.","description_zh":"计算自变量与因变量的“乘积和”，即 sum(X*Y) - sum(X) * sum(Y)/N。","description_zh_html":"计算自变量与因变量的\u003cspan class=\"quote\"\u003e“\u003cspan class=\"quote\"\u003e乘积和\u003c/span\u003e”\u003c/span\u003e，即 \u003ccode class=\"literal\"\u003esum(\u003cem class=\"parameter\"\u003e\u003ccode\u003eX\u003c/code\u003e\u003c/em\u003e*\u003cem class=\"parameter\"\u003e\u003ccode\u003eY\u003c/code\u003e\u003c/em\u003e) - sum(\u003cem class=\"parameter\"\u003e\u003ccode\u003eX\u003c/code\u003e\u003c/em\u003e) * sum(\u003cem class=\"parameter\"\u003e\u003ccode\u003eY\u003c/code\u003e\u003c/em\u003e)/\u003cem class=\"parameter\"\u003e\u003ccode\u003eN\u003c/code\u003e\u003c/em\u003e\u003c/code\u003e。","doc":{"anchor":"FUNCTIONS-AGGREGATE-STATISTICS-TABLE","file":"functions-aggregate.html","sha256":"31d3dcd36ef353484b4b3535f9f0d1cc239c3910146257fe5178f99b90b501e2","slug":"18"},"documentation_revision":{"inputs":[{"file":"functions-aggregate.html","kind":"same-version-reviewed-manual","locale":"en","sha256":"31d3dcd36ef353484b4b3535f9f0d1cc239c3910146257fe5178f99b90b501e2","version":"18.7"},{"file":"functions-aggregate.html","kind":"same-version-reviewed-manual","locale":"zh-Hans","sha256":"0bf7506d27b71666fc74840a21a8f77c8a92735174f1d05033865961722e457c","version":"18.7"}],"release":"18.7","runtime_remeasured":false,"source_revision":"pgdoc:b9f0e7232f60f380d642ac9b99226606c254b552"},"group":"aggregate","group_label":"聚合函数","lang":"en","layout":"table-new","pages":["functions-aggregate.html"],"prose_only":false,"signatures":[{"description":"Computes the “sum of products” of independent times dependent variables, sum(X*Y) - sum(X) * sum(Y)/N.","description_html":"Computes the \u003cspan class=\"quote\"\u003e“\u003cspan class=\"quote\"\u003esum of products\u003c/span\u003e”\u003c/span\u003e of independent times dependent variables, \u003ccode class=\"literal\"\u003esum(\u003cem class=\"parameter\"\u003e\u003ccode\u003eX\u003c/code\u003e\u003c/em\u003e*\u003cem class=\"parameter\"\u003e\u003ccode\u003eY\u003c/code\u003e\u003c/em\u003e) - sum(\u003cem class=\"parameter\"\u003e\u003ccode\u003eX\u003c/code\u003e\u003c/em\u003e) * sum(\u003cem class=\"parameter\"\u003e\u003ccode\u003eY\u003c/code\u003e\u003c/em\u003e)/\u003cem class=\"parameter\"\u003e\u003ccode\u003eN\u003c/code\u003e\u003c/em\u003e\u003c/code\u003e.","description_zh":"计算自变量与因变量的“乘积和”，即 sum(X*Y) - sum(X) * sum(Y)/N。","description_zh_html":"计算自变量与因变量的\u003cspan class=\"quote\"\u003e“\u003cspan class=\"quote\"\u003e乘积和\u003c/span\u003e”\u003c/span\u003e，即 \u003ccode class=\"literal\"\u003esum(\u003cem class=\"parameter\"\u003e\u003ccode\u003eX\u003c/code\u003e\u003c/em\u003e*\u003cem class=\"parameter\"\u003e\u003ccode\u003eY\u003c/code\u003e\u003c/em\u003e) - sum(\u003cem class=\"parameter\"\u003e\u003ccode\u003eX\u003c/code\u003e\u003c/em\u003e) * sum(\u003cem class=\"parameter\"\u003e\u003ccode\u003eY\u003c/code\u003e\u003c/em\u003e)/\u003cem class=\"parameter\"\u003e\u003ccode\u003eN\u003c/code\u003e\u003c/em\u003e\u003c/code\u003e。","examples":[],"html":"\u003ccode class=\"function\"\u003eregr_sxy\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":"regr_sxy ( Y double precision, X double precision ) → double precision","zh_from":"same-version-manual"}],"translation_provenance":{"inputs":[{"kind":"current-pgdoc-translation","path":"/Users/vonng/pgsty/pgdoc/zh/18/html/functions-aggregate.html","sha256":"68da7af09e2749a855188bbbff99ae036fc7eece4e19b8e048baffd28aa3ca59"}],"kind":"same-version-pgdoc","locale":"zh-Hans","source_revision":"b1b500221dbe5437cfca004d6b04d3f6e422765d","version":"18"},"zh_from":"same-version-manual"},"ManualEvidence":{"doc":{"anchor":"FUNCTIONS-AGGREGATE-STATISTICS-TABLE","file":"functions-aggregate.html","sha256":"31d3dcd36ef353484b4b3535f9f0d1cc239c3910146257fe5178f99b90b501e2","slug":"18"}},"MeasuredEvidence":{}},"Text":{"Collection":"func","Key":"regr-sxy","SourceDatabase":"center","Version":"18","Locale":"en","Title":"regr_sxy","Summary":"Computes the “sum of products” of independent times dependent variables, sum(X*Y) - sum(X) * sum(Y)/N.","BodyHTML":"Computes the \u003cspan\u003e“\u003cspan\u003esum of products\u003c/span\u003e”\u003c/span\u003e of independent times dependent variables, \u003ccode\u003esum(\u003cem\u003e\u003ccode\u003eX\u003c/code\u003e\u003c/em\u003e*\u003cem\u003e\u003ccode\u003eY\u003c/code\u003e\u003c/em\u003e) - sum(\u003cem\u003e\u003ccode\u003eX\u003c/code\u003e\u003c/em\u003e) * sum(\u003cem\u003e\u003ccode\u003eY\u003c/code\u003e\u003c/em\u003e)/\u003cem\u003e\u003ccode\u003eN\u003c/code\u003e\u003c/em\u003e\u003c/code\u003e.","SourceRevision":"wiki-repair-20261023:666d619fb6d08ba2506219ea4afe654ba6c4a00a8ddf90101eb0abb19f17a60a","ContentHash":"ebfc32c47570c74196e461f64db2e5adb4d698af75cb945de5dc207e1a18ccda","Payload":{"description":"Computes the “sum of products” of independent times dependent variables, sum(X*Y) - sum(X) * sum(Y)/N.","description_html":"Computes the \u003cspan class=\"quote\"\u003e“\u003cspan class=\"quote\"\u003esum of products\u003c/span\u003e”\u003c/span\u003e of independent times dependent variables, \u003ccode class=\"literal\"\u003esum(\u003cem class=\"parameter\"\u003e\u003ccode\u003eX\u003c/code\u003e\u003c/em\u003e*\u003cem class=\"parameter\"\u003e\u003ccode\u003eY\u003c/code\u003e\u003c/em\u003e) - sum(\u003cem class=\"parameter\"\u003e\u003ccode\u003eX\u003c/code\u003e\u003c/em\u003e) * sum(\u003cem class=\"parameter\"\u003e\u003ccode\u003eY\u003c/code\u003e\u003c/em\u003e)/\u003cem class=\"parameter\"\u003e\u003ccode\u003eN\u003c/code\u003e\u003c/em\u003e\u003c/code\u003e.","signatures":[{"description":"Computes the “sum of products” of independent times dependent variables, sum(X*Y) - sum(X) * sum(Y)/N.","description_html":"Computes the \u003cspan class=\"quote\"\u003e“\u003cspan class=\"quote\"\u003esum of products\u003c/span\u003e”\u003c/span\u003e of independent times dependent variables, \u003ccode class=\"literal\"\u003esum(\u003cem class=\"parameter\"\u003e\u003ccode\u003eX\u003c/code\u003e\u003c/em\u003e*\u003cem class=\"parameter\"\u003e\u003ccode\u003eY\u003c/code\u003e\u003c/em\u003e) - sum(\u003cem class=\"parameter\"\u003e\u003ccode\u003eX\u003c/code\u003e\u003c/em\u003e) * sum(\u003cem class=\"parameter\"\u003e\u003ccode\u003eY\u003c/code\u003e\u003c/em\u003e)/\u003cem class=\"parameter\"\u003e\u003ccode\u003eN\u003c/code\u003e\u003c/em\u003e\u003c/code\u003e.","description_zh":"计算自变量与因变量的“乘积和”，即 sum(X*Y) - sum(X) * sum(Y)/N。","description_zh_html":"计算自变量与因变量的\u003cspan class=\"quote\"\u003e“\u003cspan class=\"quote\"\u003e乘积和\u003c/span\u003e”\u003c/span\u003e，即 \u003ccode class=\"literal\"\u003esum(\u003cem class=\"parameter\"\u003e\u003ccode\u003eX\u003c/code\u003e\u003c/em\u003e*\u003cem class=\"parameter\"\u003e\u003ccode\u003eY\u003c/code\u003e\u003c/em\u003e) - sum(\u003cem class=\"parameter\"\u003e\u003ccode\u003eX\u003c/code\u003e\u003c/em\u003e) * sum(\u003cem class=\"parameter\"\u003e\u003ccode\u003eY\u003c/code\u003e\u003c/em\u003e)/\u003cem class=\"parameter\"\u003e\u003ccode\u003eN\u003c/code\u003e\u003c/em\u003e\u003c/code\u003e。","examples":[],"html":"\u003ccode class=\"function\"\u003eregr_sxy\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":"regr_sxy ( Y double precision, X double precision ) → double precision","zh_from":"same-version-manual"}]}},"RequestedLocale":"en","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":"231803c368834e869274e951401767234f148c2ab9d8538c2408db16879c2248","Text":"regr_sxy ( Y double precision, X double precision ) → double precision","Returns":"double precision","Payload":{"description":"Computes the “sum of products” of independent times dependent variables, sum(X*Y) - sum(X) * sum(Y)/N.","description_html":"Computes the \u003cspan class=\"quote\"\u003e“\u003cspan class=\"quote\"\u003esum of products\u003c/span\u003e”\u003c/span\u003e of independent times dependent variables, \u003ccode class=\"literal\"\u003esum(\u003cem class=\"parameter\"\u003e\u003ccode\u003eX\u003c/code\u003e\u003c/em\u003e*\u003cem class=\"parameter\"\u003e\u003ccode\u003eY\u003c/code\u003e\u003c/em\u003e) - sum(\u003cem class=\"parameter\"\u003e\u003ccode\u003eX\u003c/code\u003e\u003c/em\u003e) * sum(\u003cem class=\"parameter\"\u003e\u003ccode\u003eY\u003c/code\u003e\u003c/em\u003e)/\u003cem class=\"parameter\"\u003e\u003ccode\u003eN\u003c/code\u003e\u003c/em\u003e\u003c/code\u003e.","description_zh":"计算自变量与因变量的“乘积和”，即 sum(X*Y) - sum(X) * sum(Y)/N。","description_zh_html":"计算自变量与因变量的\u003cspan class=\"quote\"\u003e“\u003cspan class=\"quote\"\u003e乘积和\u003c/span\u003e”\u003c/span\u003e，即 \u003ccode class=\"literal\"\u003esum(\u003cem class=\"parameter\"\u003e\u003ccode\u003eX\u003c/code\u003e\u003c/em\u003e*\u003cem class=\"parameter\"\u003e\u003ccode\u003eY\u003c/code\u003e\u003c/em\u003e) - sum(\u003cem class=\"parameter\"\u003e\u003ccode\u003eX\u003c/code\u003e\u003c/em\u003e) * sum(\u003cem class=\"parameter\"\u003e\u003ccode\u003eY\u003c/code\u003e\u003c/em\u003e)/\u003cem class=\"parameter\"\u003e\u003ccode\u003eN\u003c/code\u003e\u003c/em\u003e\u003c/code\u003e。","examples":[],"html":"\u003ccode class=\"function\"\u003eregr_sxy\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":"regr_sxy ( Y double precision, X double precision ) → double precision","zh_from":"same-version-manual"}}],"Spellings":null,"SQLState":null,"Evidence":null}