Get error for fit function (surface) in matlab2021

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Torkan 2022-4-7

评论： Torkan 2022-4-7

Hello

I have some data I want to use my code but in matlab2021 it does not work. any idea? It could read data but fit does not wok.

clear all

K=readtable('TEMPLDFC.xlsx');

x = K.(1) ;

y = K.(2) ;

z = K.(3);

f = fit([x y],z,"poly23");

Check for incorrect argument data type or missing argument in call to function 'fit'.

Torkan 2022-4-7

编辑：Torkan 2022-4-7

Thanks. Attached

surface fit

consider x y z as a double

x= [1;2;3;4;5]

y=[2;3;4;6;7];

z=[2;6;8;10;34];

These are arbitrary I have my excel file where I read my data

Torkan 2022-4-7

Walter Roberson 2022-4-7

I suspect that you do not have the Curve Fitting Toolbox installed.

Torkan 2022-4-7

Hmm. Ok so no problem with the code right? Can I install myself? could you pelase let me know how?

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