regression line

基本解釋

How do we think about how well our sample regression line fits our sample data?
我們怎樣衡量我們的樣本回歸線擬合樣本數(shù)據(jù)有多好呢？
dict.cn
What Gauss did was said, let's fit a line through the point-- the scatter of points--and that's called the regression line.
高斯說,做這樣的一條直線,切合所有散點,這就是回歸直線
If the observations used in the analysis extend back in time for several years, the resulting regression line may be too steep.
如果在分析中使用的觀察值擴大到幾年以前，那么推導出的回歸直線就會可能太懸殊。

What Gauss did was said, let's fit a line through the point-- the scatter of points--and that's called the regression line.
高斯說,做這樣的一條直線,切合所有散點,這就是回歸直線
耶魯公開課 - 金融市場課程節(jié)選
That's called the regression line and the intercept is called alpha--there's alpha.
這就是回歸直線,這個是截點,用alpha表示...這里是alpha
耶魯公開課 - 金融市場課程節(jié)選
The concept of regression goes back to the mathematician Gauss, who talked about fitting a line through a scatter of points.
回歸這個概念要追溯到數(shù)學家高斯,討論的是從若干散點中切合出一條直線
耶魯公開課 - 金融市場課程節(jié)選

R2 is most often seen as a number between 0 and 1, used to describe how well a regression line fits a set of data.
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