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ycho-31-Visitor
1-Visitor
June 26, 2016
Question

error: This value must be a scalar :( HELP

  • June 26, 2016
  • 2 replies
  • 3626 views

Hi I am doing optimizing, and need to minimize the  error below . (by using Minerr in mathcad)

But before that,  problem is this error.

2 replies

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mzarrabi1-Visitor
1-Visitor
December 21, 2017

Hi @ycho-3, you need to do element by element multiplication for your equations to work. Also, you need to have a simple function for your e-e-t data (see the attached).

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LucMeekes23-Emerald IV
23-Emerald IV
December 21, 2017

Note that the original post is 1.5 years old....

 

Luc

 

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    VladimirN24-Ruby III
    24-Ruby III
    December 21, 2017

    Smiley LOL

    R
    RichardJ19-Tanzanite
    19-Tanzanite
    December 21, 2017

    As already pointed out, you need to vectorize the expressions.

     

    When using minerr, do not calculate the error. Calculate a vector of residuals, resid:=fitting-experiment, and pass that to minerr. You will get better results.

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