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Linear fit

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Capture.PNGsnip.pngIn this simple vi I expected intersect to be 1 and slope to be 2.
What am I doing wrong?

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Message 1 of 5
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Solution
Accepted by topic author Michael.Koppelgaard

Hi Michael,

 

either the implementation changed from LV2011 to your LV2015 - or you did some wiring wrong (which I can't check right now):

check.png

The error is with your array indexes! Arrays start at index 0 - but your FP elements show only elements starting from index 1!

You should have noted you get an array with 4 elements as "best fit", while you think you only input arrays with 3 elements!

Best regards,
GerdW


using LV2016/2019/2021 on Win10/11+cRIO, TestStand2016/2019
Message 2 of 5
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Michael.Koppelgard>> The index on your Y and X arrays are set to 1, you are not seeing the first element in the arrays! Remove the first elements and it will work.

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Capture.PNG

A "0" was hidden i the start of each array 🙂

 

 

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Hej Michæl,

 

    Normalt sætter man ikke sig selv som.... oops sorry wrong language 🙂

 

    You normally don't put your self as the solution author so you should probably give both GerdW and perhult credit for the solution.

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