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Statistics版 - regression 入门级问题求教
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话题: x1话题: 入门级话题: regression话题: held
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1 (共1页)
s***1
发帖数: 343
1
fit了一个model,里面10来个variable,加了5,6个significant而且有实际意义的
interaction,
问简单点,比如Y=2X1+3X2+7X3+10X4-2X1X2-X1X3-1.5X2X4,都是continuous variable
,不准备变成categorical的
那么最终的时候X1前面的系数如果要单纯解释,不和interaction项结合解释,怎么解
释法?
做t-test的时候,X1前面的coefficient的t值和p-value需要怎么解释?
谢谢!
z*******n
发帖数: 15481
2
x1的系数就是
EXPECTED DIFFERENCE IN Y COMPARING TWO POPULATION DIFFERING IN X1 BY 1 WHILE
X2 AND X3 HELD 0 AND X4 HELD CONSTANT.
BAOZI,PLEASE!
t**c
发帖数: 539
3
haha, good one!

WHILE

【在 z*******n 的大作中提到】
: x1的系数就是
: EXPECTED DIFFERENCE IN Y COMPARING TWO POPULATION DIFFERING IN X1 BY 1 WHILE
: X2 AND X3 HELD 0 AND X4 HELD CONSTANT.
: BAOZI,PLEASE!

1 (共1页)
进入Statistics版参与讨论
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