I used Curve Fitting Tool and FIt Fuction. ===========Fit function=================== [xData, yData, zData] = prepareSurfaceData( xxx, yyy, zzz ); ft = 'nearestinterp'; [fitresult, gof] = fit( [xData, yData], zData, ft, 'Normalize', 'on' ); ============Curve Fitting Tool============= ====================================== So my question is as below! I want to extract the matrix like the picture above.In other words, I want to extract the matrix for zzz. 2. I would also like to extract whether the xxx and yyy coordinates are located in the extracted matrix.

How to extract matrix from fit function or sfit result or Curve Fitting Tool??

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kyoung won Min 2021-8-24

编辑： kyoung won Min 2021-8-24

I used Curve Fitting Tool and FIt Fuction.

===========Fit function===================

[xData, yData, zData] = prepareSurfaceData( xxx, yyy, zzz );

ft = 'nearestinterp';

[fitresult, gof] = fit( [xData, yData], zData, ft, 'Normalize', 'on' );

============Curve Fitting Tool=============

======================================

So my question is as below!

I want to extract the matrix like the picture above.In other words, I want to extract the matrix for zzz.

2. I would also like to extract whether the xxx and yyy coordinates are located in the extracted matrix.

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R2019a

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