regression equation when X and Y same

[Chao Yawo]

hello

just a quick question -- what regression equation can be used to predict Y (the dependent variable), if indeed the values of Y and X (the predictor) are the same?

thanks, CY

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[Jignesh Sutar]

The general formula for a regression equation takes the form: Y=a+bX

Where a is the constant/intercept and b is the regresion coeffeceint.

So in your example you require a=0 & b=1.

Jignesh

2009/3/23 Chao Yawo <[hidden email]>

hello

just a quick question -- what regression equation can be used to predict Y (the dependent variable), if indeed the values of Y and X (the predictor) are the same?

thanks, CY

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