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WalterSchrabmai12-Amethyst
12-Amethyst
June 6, 2016
Solved

SSE vs. ERR variable at a MinERR Solveblock?

  • June 6, 2016
  • 2 replies
  • 4650 views

Hi Friends,

one short Question:

Is - for an nonlinear model - the ERR variable at a MINERR Solve Block the same as the Sum of Squared Errors? (SSE)

I have different values there.

Thanks for helping and answering.

Walter

Best answer by ViktorKorobov

Walter,

Compare SSE and ERR^2.

2 replies

V
ViktorKorobov1-VisitorAnswer
1-Visitor
June 6, 2016

Walter,

Compare SSE and ERR^2.

    W
    Werner_E25-Diamond I
    25-Diamond I
    June 6, 2016

    The attached sheet should help but Viktor already explained the relationship.

    Regards, Werner

      W
      WalterSchrabmai12-AmethystAuthor
      12-Amethyst
      June 6, 2016

      Thanks a lot! I also thought that minimizing SSE would be the same as

      SSE_diff2.gif

      I think the proper Fitting with least errors is minimizing SSE, right? But why do I not get fine with my sheet? In my second sheet is fine.

      R
      RichardJ19-Tanzanite
      19-Tanzanite
      June 6, 2016

      I think the proper Fitting with least errors is minimizing SSE, right?

      No. Minimize the residuals, and use the Levenberg-Marquardt algorithm. Passing the SSE to the LM algorithm messes up how it works, and you get less than optimal results.

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