Linear regression with the same X value

xeon123 · Jun 26, 2013

In a linear regression with 1 independent variable, if X is always the same (let's call I am unlucky), but Y present different values for the same X, I still can find the coefficient of the straight line equation?

pasmith · Jun 26, 2013

xeon123 said:

In a linear regression with 1 independent variable, if X is always the same (let's call I am unlucky), but Y present different values for the same X, I still can find the coefficient of the straight line equation?

The straight line would be parallel to the Y-axis, so it would be X = C where C is the one value of X.

Number Nine · Jun 26, 2013

If there is no variability in X, then X is certainly not going to do a very good job of explaining variability in Y.

Linear regression with the same X value

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Linear regression with the same X value

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