How could I fix an error in line 4 ("not enough arguments") of my routine?

function [dados, Vx, Vy] =PLineares(AP,ML,SR) pi=3.141592653589793238; z=1.645; n=length(AP); dt=SR/n; T=dt*n; %------------------------------------------ APcm=AP*100;MLcm=ML*100; dx=diff(abs(APcm));dy=diff(abs(MLcm)); for i=1:n-1 DOT_(i)=(APcm(i+1)-APcm(i))^2+(MLcm(i+1)-MLcm(i))^2; end DOT_AP= norm(APcm);DOT_ML= norm(MLcm); DOT = sqrt(DOT_AP^2+DOT_ML^2); %------------------------------------------ Vap=DOT_AP/T;Vml=DOT_ML/T;Vr=DOT/T; dx=diff(APcm); dy=diff(MLcm); %------------------------------------------ Vx=dx./dt;Vy=dy./dt; Vx(n)=Vx(n-1);Vy(n)=Vy(n-1); %**************************************** ACPap = max(APcm) - min(APcm); ACPml = max(MLcm) - min(MLcm); V = cov(APcm,MLcm); [vec,val] = eig(V); axes = 2.4478*sqrt(svd(val)); Area = pi*prod(axes); %-------------------------------------------------------------- dados(1)=DOT;dados(2)=DOT_AP; dados(3)=DOT_ML; dados(4)=ACPap;dados(5)=ACPml;dados(6)=Area; dados(7)=Vr; dados(8)=Vap;dados(9)=Vml; %-------------------------------------------------------------- %************************* %* Fim da Rotina %************************

[Jan]

Please, Borja, format your code properly. Consider that this advice has been given over thousands of times already and that it is in your interest to increase the readability of your question.

Please post the complete error message, most of all the line, which causes the problem.

[Maria Perdomo]

Wich one is your line four?

function [dados, Vx, Vy] =PLineares(AP,ML,SR) 
pi=3.141592653589793238;
z=1.645;

                           n=length(AP); %%%%IS THIS YOUR LINE FOUR?????

dt=SR/n;
T=dt*n;
%------------------------------------------ 
APcm=AP*100;
MLcm=ML*100; 
dx=diff(abs(APcm));
dy=diff(abs(MLcm)); 
for i=1:n-1 
    DOT_(i)=(APcm(i+1)-APcm(i))^2+(MLcm(i+1)-MLcm(i))^2; 
end
DOT_AP= norm(APcm);
DOT_ML= norm(MLcm); 
DOT = sqrt(DOT_AP^2+DOT_ML^2)
%------------------------------------------ 
Vap=DOT_AP/T;
Vml=DOT_ML/T;
Vr=DOT/T;
dx=diff(APcm);
dy=diff(MLcm); 
%------------------------------------------ 
Vx=dx./dt;Vy=dy./dt; Vx(n)=Vx(n-1);Vy(n)=Vy(n-1); 
%**************************************** 
ACPap = max(APcm) - min(APcm); 
ACPml = max(MLcm) - min(MLcm);
V = cov(APcm,MLcm);
[vec,val] = eig(V); 
axes = 2.4478*sqrt(svd(val));
Area = pi*prod(axes); 
%--------------------------------------------------------------
dados(1)=DOT;
dados(2)=DOT_AP; 
dados(3)=DOT_ML; 
dados(4)=ACPap;
dados(5)=ACPml;
dados(6)=Area; 
dados(7)=Vr; 
dados(8)=Vap;
dados(9)=Vml;
%-------------------------------------------------------------- 
%************************* %* Fim da Rotina %*********************

[Borja]

Yes it is...

Answer 1

[Jan]

How did you call this program? Did you define the required input arguments? The correct calling method is typing this into the command window, a script or a function:

[dados, Vx, Vy] = PLineares(AP, ML, SR)

[Borja]

Hi

If I type what you say into the command window the message is

Undefined function or variable AP

Answer 2

[Maria Perdomo]

Borja,

you have to give values to AP ML and SR. For example:

[dados, Vx, Vy] = PLineares([1 2 3], [1 2 3], 3)

please notice that your code requires AP and ML to be the same size