fit data in MathScript with user-defined function

[chrmwo]

Hi all,

I am trying to implement some fits with a MathScript node with a user-defined function.

Something is obviously wrong, the code is greyed out in parts, although absolutely not clear to me what the issue is. I attached the vi, made in LV2018, 32bit. Not sure whether the syntax is up to date? The online help w.r.t function syntax directs one to a LV 2012 help page: https://zone.ni.com/reference/en-XX/help/373123C-01/lvtextmathmain/mathscript_function_syntax/

Thanks in advance for helping!!

best,

Christian

[User002]

Hi, @chrmwo,

So, if I understand correctly, what you're asking is:

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Not sure whether the syntax is up to date?

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I'm not sure either. But have you tried the syntax in the link you posted? It says that if you use a function, it needs to be defined and saved before being used.

Looking at your MathScript node, it looks like you're trying to define functions in-line with the "function" keyword. But based on the syntax in the link you posted, that's only used in the beginning of a function (or in a sub-function, which needs to be defined in a function, and then only used by that function).

Your node does not look like a function, so using the word "function" part-way through seems incorrect.

Have you tried defining your functions in separate .m files per the syntax in the link you posted?

If it helps, here are some other resources:

Using MathScript and Formula Nodes in NI LabVIEW - National Instruments

Developing Algorithms Using LabVIEW MathScript RT Module: Part 1 – The LabVIEW MathScript Node - Nat...

Developing Algorithms Using LabVIEW MathScript RT Module: Part 2- The LabVIEW MathScript Window - Na...

Hopefully this helps you move forward.

-joeorbob