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Logarithmic Regression: Different correlation from 3 different calculators
06-10-2015, 12:12 AM
Post: #11
RE: Logarithmic Regression: Different correlation from 3 different calculators
(06-09-2015 10:38 PM)Paul Dale Wrote:  
(06-09-2015 10:00 PM)Dave Britten Wrote:  that log regression isn't appropriate for this data

Huh? r of 0.968 means r2 of about 0.93 which is very high. What level of correlation is appropriate ????? This is about as good as most data analysts wish for.


- Pauli

Oh, I was mostly referring to the fact that you get a TINY bit higher correlation with plain linear regression. This is actually some data from our ERP system showing growth of one of the larger tables in rows by year.

(06-09-2015 11:26 PM)CR Haeger Wrote:  r and r^2 may not be valid for nonlinear models per Minitab

Interesting, I'll read that over. Maybe coefficient of determination would be a better choice.
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RE: Logarithmic Regression: Different correlation from 3 different calculators - Dave Britten - 06-10-2015 12:12 AM



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