nonlinear regression

michael_
michael_ New Altair Community Member
edited November 5 in Community Q&A
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

  • MartinLiebig
    MartinLiebig
    Altair Employee
    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
  • michael_
    michael_ New Altair Community Member
    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.

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