COVAR_SAMP (Lakehouse v2)
返回两个表达式的样本协方差。
Analyze 语法
Section titled “Analyze 语法”func.covar_samp(get_column(table, 'y'), get_column(table, 'x'))Analyze 示例
Section titled “Analyze 示例”func.covar_samp(get_column(table, 'height'), get_column(table, 'weight'))
┌────────┐│ 103.01 │└────────┘SQL 语法
Section titled “SQL 语法”COVAR_SAMP(<y>, <x>)SQL 示例
Section titled “SQL 示例”SELECT COVAR_SAMP(height, weight) FROM measurements;
┌────────┐│ 103.01 │└────────┘