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Topic: Negative R^2 value
Replies: 2   Last Post: Nov 23, 2009 10:48 PM

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Posts: 2
From: USA
Registered: 11/23/09
Re: Negative R^2 value
Posted: Nov 23, 2009 10:48 PM
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The coefficient of determination is always in [0,1] for linear regression. For statistical procedures other than linear regression, ad hoc "R-squared type" measures exist that try to mimic the behavior of R-squared, but may end up being negative.
The "adjusted" R-squared can also be negative.

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