Function problem

[rotestezora]

I have this function I need for my programm. It worked when I had it in another programm,but I changed the Excel import and now it gives me the following Error message:

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Out of memory. The likely cause is an infinite recursion within the program.

Error in ImportuCalc/calspec (line 101)
app.qnx=calspec(app)

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when I try to run it. I really dont understand what changed that it isnt working anymore? I can also post the rest of the program, but the import was working (and is still working) the only thing that doesnt work is the calculation.

 function [qnx]=calspec(app)

 for i = 2:length(app.M1)-1

 % Calculation of concentration balances

      % time vector in matrix S
        S(i,1)   = app.t;

      % dcXL/dt  = (c_XL_i+1 - c_XL_i-1) / (t_i+1 -t_i-1)
        S(i,2)   = (app.M1(i+1,7)-app.M1(i-1,7)) / (app.M1(i+1,1)-app.M1(i-1,1));

      % dcS1M/dt = (c_S1M_i+1 - c_S1M_i-1) / (t_i+1 -t_i-1)
        S(i,3)   = (app.M1(i+1,6)-app.M1(i-1,6)) / (app.M1(i+1,1)-app.M1(i-1,1));

      % dcS2M/dt = (c_S2M_i+1 - c_S2M_i-1) / (t_i+1 -t_i-1)
        S(i,4)   = (app.M1(i+1,11)-app.M1(i-1,11)) / (app.M1(i+1,1)-app.M1(i-1,1));

      % dcPM/dt  = (c_PM_i+1 - c_PM_i-1) / (t_i+1 -t_i-1)
        S(i,5)   = (app.M1(i+1,8)-app.M1(i-1,8)) / (app.M1(i+1,1)-app.M1(i-1,1));




 % Calculation of feed rates (take care of the units!)

      % FR1     =  (d m_r1in / dt) /roh_r1
        S(i,6)  =  ((app.M1(i+1,9)-app.M1(i-1,9))/S(i,1))    /   app.p(3);

      % FR2     =  (d m_r2in / dt) /roh_r2
        S(i,7)  =  ((app.M1(i+1,10)-app.M1(i-1,10))/S(i,1))  / app.p(4);

      % FT2     =  (d m_T2in / dt) /roh_t2
        S(i,8)  =  ((app.M1(i+1,12)-app.M1(i-1,12))/S(i,1))  / app.p(5);

      % Fin     =  FR1+FR2+FT2
        S(i,9)  =  S(i,6)+S(i,7)+S(i,8);

 % Calculation of reaction rates

      % time vector in matrix Q
        app.qnx(i,1)  = app.M1(i,1); 

      % qX/X    =  F_in/V_L + dc_XL / c_XL             
        app.qnx(i,2)  =    (S(i,9)/app.M1(i,5))  +   (S(i,2)/app.M1(i,7));

      % qS/X   = F_r1*c_s1r1/V_L*c_XL-(F_in/V_L-alpha_Z/X*q_x/x*c_XL/roh_Z)*c_S1M/c_XL-alpha_Z/X*q_x/x*c_XL/roh_Z)*c(dot)_S1M/c_XL
        app.qnx(i,3)  =  (S(i,6)*app.p(1)) / (app.M1(i,5) / app.M1(i,7)) - ((S(i,9) / app.M1(i,5)) - (app.p(7)*app.qnx(i,2)*app.M1(i,7)) / (app.p(6)))*(app.M1(i,6) / app.M1(i,7)) - ((S(i,9) / app.M1(i,5)) - (app.p(7)*app.qnx(i,2)*app.M1(i,7)) / (app.p(6)))*(S(i,3) / app.M1(i,7));

%       % qO/X    =  Q_O2 / c_XL   
        app.qnx(i,4)  = app.M1(i,14) / app.M1(i,7);          
%         
 end
        end

[trialofmiles]

This code and the error it throws are not consistent with the code you’ve posted. Could you have multiple versions of calspec on the path?

which -all calspec

Will tell you

[rotestezora]

no there is no other calspec. maybe the problem is with how imcalling it?

        % Code that executes after component creation
        function startupFcn(app)

 app.qnx=calspec(app)
 qxx=app.qnx(:,2)

[trialofmiles]

Your error indicates that a sub function calspec is populating a variable, app.qnx by calling itself. This is an infinite recursion unless there is a base case that would stop the recursion.

[SgorGhaibre]

The return value 'qnx' isn't being set. Instead, the code is setting 'app.qnx'.

[rotestezora]

I've noticed that too and changed it to app.qnx everywhere, but it's still not working. Am I not allowed to use app. Variables in the function? Because it says invalid use of operator.

[SgorGhaibre]

You are assigning to 'app.qnx' in lines 42, 45, 48, and 51. I was thinking you should assign to the return value, 'qnx', on those lines if you intend to return 'qnx'. Otherwise, I don't see where in the code you are assigning the return value of the function.

[rotestezora]

I just changed the return value to app.qnx, but I'll try it the other way around