How would I do a regression on a data set that follows a power curve? Also, a regression on a data set that follows a logarithmic scale? Thanks.
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Answers
MartinLiebigAdministrator, Moderator, Employee, RapidMiner Certified Analyst, RapidMiner Certified Expert, University ProfessorPosts: 3,453 RM Data Scientist
Hi,
there is currently no implementation of regression using a sum (or product?) of exponential basis functions available. What you can do is add the exp/log of everything and do standard polynomial/linear regression. This is in the end the same thing. The operator you might use for this is called Generate Function set.
Cheers, Martin
- Sr. Director Data Solutions, Altair RapidMiner - Dortmund, Germany
Thank you for the quick response. Is there a thread that gives a tutorial on using polynomial regression? I have had issues when trying to model data with multiple independent variables.
Contributor I
Answers
there is currently no implementation of regression using a sum (or product?) of exponential basis functions available. What you can do is add the exp/log of everything and do standard polynomial/linear regression. This is in the end the same thing. The operator you might use for this is called Generate Function set.
Cheers,
Martin
Dortmund, Germany