what is wrong with my code? film() says too many input arguments

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Luis Gonzalez 2022년 6월 3일

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https://kr.mathworks.com/matlabcentral/answers/1733425-what-is-wrong-with-my-code-film-says-too-many-input-arguments

댓글: Walter Roberson 2022년 6월 4일

Hello im trying to do a least squares code , i got almost everything except that when i use the function "fitlm" it says error all the time too many input arguments

matriz=readmatrix('ejemplo.csv')
x=matriz(:,1); y=matriz(:,2)
xy=x.*y
x2=x.^2
table(x,y,xy,x2)
[m,b]=minimosC(x,y)
mdl= fitlm(x,y);
rsq=mdl.Rsquared.Ordinary
recta=m*x+b
fprintf('El modelo lineal predice el %0.4',rsq*100)
plot(x,y,'.g','MarkerSize',10)
hold on
plot(x,recta)
grid on
title("m="+m+"b="+b+"R2="+rsq)
xlabel('valores x')
ylabel('valores y')
legend('datos','Ecuacion Lineal','location','bestoutside')

heres my code if someone could help i'd appreciate it :)

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Voss 2022년 6월 3일

MATLAB Online에서 열기

fitlm seems to work as you are using it:

matriz = rand(3,2);
mdl = fitlm(matriz(:,1),matriz(:,2))
mdl = 
Linear regression model:
    y ~ 1 + x1

Estimated Coefficients:
                   Estimate       SE        tStat      pValue 
                   _________    _______    ________    _______

    (Intercept)      0.49408    0.23068      2.1418    0.27809
    x1             -0.055244    0.35312    -0.15645     0.9012


Number of observations: 3, Error degrees of freedom: 1
Root Mean Squared Error: 0.157
R-squared: 0.0239,  Adjusted R-Squared: -0.952
F-statistic vs. constant model: 0.0245, p-value = 0.901

Perhaps there is another m-file with the same name shadowing the built-in fitlm.m.

To find out, do this:

which -all fitlm
/MATLAB/toolbox/stats/classreg/fitlm.m
/MATLAB/toolbox/stats/bigdata/@tall/fitlm.m  % Shadowed tall method
/MATLAB/toolbox/stats/gpu/@gpuArray/fitlm.m  % Shadowed gpuArray method

and see if there is another fitlm function somewhere that's being called instead.