目录一、简介二、语法和参数三、实例3.1 计算默认的皮尔逊相关系数3.2 计算斯皮尔曼相关系DTBdpof数3.3 计算斯皮尔曼相关系数四、注意事项一、简介
Let\'s assume I have a database with two tables: categories and articles. Every article belongs to a category.