How to solve Maximum recursion limit of 500 reached problem

Dear all, my matlab function is this

function eyescript(func, begin_in, end_in, args, ext)

if func==0
    for i=begin_in;
        fn=strcat(num2str(i),ext);
        fprintf('\nRunning %s\n',fn);
        symeye(fn,args(1),args(2),args(3),args(4));
    end
else
    for i=begin_in;
        fn=strcat(num2str(i),ext);
        fprintf('\nRunning %s\n',fn);
        avgeye(fn,args(1), args(2));
    end
end

when i want to call out this function eyescript i keep getting this error

eyescript(0,1,30,[0,0,0,0],'.jpg');

Maximum recursion limit of 500 reached. Use set(0,'RecursionLimit',N) to
change the limit. Be aware that exceeding your available stack space can crash
MATLAB and/or your computer.

Error in eyescript

What should i do to prevent this error from happening? Thanks in advance.

[Adam]

Hard to say without knowing what symeye does which at first glance appears to be the only thing that could cause recursion.

As an aside, are you not missing the end_in from your:

for i = begin_in

statement?

Since you are getting infinite recursion only executing it once maybe this is just as well for now, but once you solve the recursion you'll presumably need

for i = bein_in:end_in

instead.

[[e-mail] [e-mail]]

Maximum recursion limit of 500 reached. Use set(0,'RecursionLimit',N) to change the limit. Be
aware that exceeding your available stack space can crash MATLAB and/or your computer.
Programme:
puma560;
robot=p560
N=5; % Numero de Iteraciones

z=linspace(0.432,0.482,N); % se mueve 0.05 unidades
x=zeros(1,N);
y=x;
for j=1:N
y(1,j)=-0.15;
x(1,j)=0.452;
end
phi=zeros(1,N);
for k=1:length(z)
phik=phi(k);
T(:,:,k)=[cos(phik) -sin(phik) 0 x(k); 
          sin(phik) cos(phik) 0 y(k); 
          0 0 1 z(k); 
          0 0 0 1];
end
qzz=ikine(robot,T)
plot(robot,qzz)

y=linspace(-0.15,0.05,N); % se mueve 0.20 unidades
x=zeros(1,N);
z=x;
for j=1:N
x(1,j)=0.452;
z(1,j)=0.482;
end
phi=zeros(1,N);
for k=1:length(y)
phik=phi(k);
T(:,:,k)=[cos(phik) -sin(phik) 0 x(k); 
          sin(phik) cos(phik) 0 y(k); 
          0 0 1 z(k); 
          0 0 0 1];
end
qyy=ikine(robot,T)
plot(robot,qyy)

x=linspace(0.452,0.702,N); % se mueve 0.25 unidades
y=zeros(1,N);
z=y;
for j=1:N
y(1,j)=0.05;
z(1,j)=0.482;
end
phi=zeros(1,N);
for k=1:length(x)
phik=phi(k);
T(:,:,k)=[cos(phik) -sin(phik) 0 x(k); 
          sin(phik) cos(phik) 0 y(k); 
          0 0 1 z(k); 
          0 0 0 1];
end
qxx=ikine(robot,T)
plot(robot,qxx)

y=linspace(0.05,-0.05,N); % se mueve 0.10 unidades
x=zeros(1,N);
z=x;
for j=1:N
x(1,j)=0.702;
z(1,j)=0.482;
end
phi=zeros(1,N);
for k=1:length(y)
phik=phi(k);
T(:,:,k)=[cos(phik) -sin(phik) 0 x(k); 
          sin(phik) cos(phik) 0 y(k); 
          0 0 1 z(k); 
          0 0 0 1];
end
qyy=ikine(robot,T)
plot(robot,qyy)

[Walter Roberson]

You opened a Question about this, so it will be discussed in that Question.

Answer 1

[Ken Atwell]

A recursion depth of 500 is "absurd", almost surely indicating a problem in the code and not some limitation in MATLAB. The recursion could be in symeye -- does it call itself, or call eyescript? Recursion problems can be tricky to debug. I recommend:

1. Set breakpoint at the beginning of eyescript and run to it.
2. Step OVER the calls to MATLAB functions like strcat and fprintf.
3. Step IN to the call to symeye
4. Continue this pattern until the program takes an unexpected turn.

PS: I second Adam's comment about your 'for' loop, it is likely not what you intend.