regression line

基本解释

How do we think about how well our sample regression line fits our sample data?
我们怎样衡量我们的样本回归线拟合样本数据有多好呢？
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.
高斯说,做这样的一条直线,切合所有散点,这就是回归直线
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观察值扩大到几年以前，那么推导出的回归直线就会可能太悬殊。

What Gauss did was said, let's fit a line through the point-- the scatter of points--and that's called the regression line.
高斯说,做这样的一条直线,切合所有散点,这就是回归直线
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That's called the regression line and the intercept is called alpha--there's alpha.
这就是回归直线,这个是截点,用alpha表示...这里是alpha
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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
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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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