Undefined function for input arguments of type 'double' - fit function

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Jochem
Jochem 2018-12-23
评论： madhan ravi 2020-7-26
I'm running the following code:
close all
clear
clc
x = [0:0.01:1];
A=[0.0; 0.2; 0.4; 0.6; 0.8; 1.0];
B=[0.0; 0.034; 0.12; 0.267; 0.5; 1.0];
f=fit(A,B,'poly2')
But it results in the following error:
Undefined function 'fit' for input arguments of type 'double'.
Error in filename (line 68)
f=fit(A,B,'poly2')
I checked that the folder is in the correct path.
Help is appreciated.

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采纳的回答

Guillaume
Guillaume 2018-12-23
Most likely you don't have the curve fitting toolbox installed or you don't have a license for it.
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更多回答（1 个）

madhan ravi
madhan ravi 2018-12-23
What does the below show?
which fit -all
whos fit
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Jochem
Jochem 2018-12-23
I do have it installed:
Statistics and Machine Learning Toolbox Version 11.3 (R2018a)

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