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Linear regression with the same X value

  1. Jun 26, 2013 #1
    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?
     
  2. jcsd
  3. Jun 26, 2013 #2

    pasmith

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    The straight line would be parallel to the Y-axis, so it would be X = C where C is the one value of X.
     
  4. Jun 26, 2013 #3
    If there is no variability in X, then X is certainly not going to do a very good job of explaining variability in Y.
     
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