I am trying to run an OLS regression, with two continuous variables, both with negative and positive values. How should one deal with this? How do you plot a regression line in this case? Is it necessary to add a constant to counteract any negative values? Thank you.
The fact that a variable can take on positive and negative values does not matter for the OLS regression analysis. You can plot your regression line as usual.
Can you please elaborate, where do you see a problem in the first place???? I am confused......
Another possibility is it ols regression that you should be using? David Booth
This question is not really a statistical issue but an algebraic equation issue.What are being graphically plotted are the dependent and independent variables (x and y) .of the relationship
equation.
Therefore,the question needs not arise.
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