inter-class variance

• 组间方差

inter-class variance的用法和样例：

例句

1. In statistical language, this estimate is called the between-column variance.
   在统计学中这个估计值叫组间方差。
2. A valid function based on infra-class and inter-class variance to decide the number of regions was presented.
   提出了一种基于类间方差和类内方差的自适应确定分割区域数的方法。