regression line

基本解釋

How do we think about how well our sample regression line fits our sample data?
我們?cè)鯓雍饬课覀兊臉颖净貧w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(shuō),做這樣的一條直線,切合所有散點(diǎn),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(kuò)大到幾年以前，那么推導(dǎo)出的回歸直線就會(huì)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(shuō),做這樣的一條直線,切合所有散點(diǎn),這就是回歸直線
耶魯公開(kāi)課 - 金融市場(chǎng)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(gè)是截點(diǎn),用alpha表示...這里是alpha
耶魯公開(kāi)課 - 金融市場(chǎng)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(gè)概念要追溯到數(shù)學(xué)家高斯,討論的是從若干散點(diǎn)中切合出一條直線
耶魯公開(kāi)課 - 金融市場(chǎng)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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