The concept of regression goes back to the mathematician Gauss, who talked about fitting a line through a scatter of points.

回归这个概念要追溯到数学家高斯,讨论的是从若干散点中切合出一条直线

耶鲁公开课 - 金融市场课程节选

What Gauss did was said, let's fit a line through the point-- the scatter of points--and that's called the regression line.

高斯说,做这样的一条直线,切合所有散点,这就是回归直线

耶鲁公开课 - 金融市场课程节选

This could be 1979, this could be 1980, and we keep adding points so we have a whole scatter of points.

假设这里是1979年,这里是1980年,一直添加数据点,就形成了一个散点图

耶鲁公开课 - 金融市场课程节选

Let's draw a line through a scatter of points here.

我们来画一条切合散点的直线

耶鲁公开课 - 金融市场课程节选