How to get a one function result?

I have a main function called mainfun

function [out1,out2]=mainfun(input)

[out1]=fun1(input);

[out2]=fun2(input);

end

so my question is ,may be i am calling my mainfun,and I want to display the individual result from different sub function,but how to display if there is any error in one subfunction ?

like an example ,

if in my fun1 there is eroor then also i want to get the fun2 result .

Answer 1

[Walter Roberson]

You can create a helper function

function varargout = safe(fcn, varargin)
  try 
    [varargout{}] = fcn(varargin{:}) ;
   catch ME:
     varargout(:) = {nan};
   end

With that you can

   [out1] = safe(@fun1,input);
   [out2] = safe(@fun2,input);

[Akash Pal]

[Coap,Co1ap,combap,obj1ap,obj2ap,comb1ap,comb3ap,comb4ap,comb5ap,comb6ap] = safe(@proposed2,Xa,i,j);

File: safe.m Line: 3 Column: 16

Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for mismatched delimiters.

error is showing in this helper function.

[Walter Roberson]

function varargout = safe(fcn, varargin)
try 
  [varargout{:}] = fcn(varargin{:}) ;
 catch ME:
   varargout(:) = {nan};
 end

[Akash Pal]

[F1,M1,deobj1a,bb1,deobj2a,Xa,Coap,Co1ap,combap,obj1ap,obj2ap,comb1ap,comb3ap,comb4ap,comb5ap,comb6ap,comb12ae,obj11ae,obj22ae,comb11ae,comb22ae,comb33ae,comb44ae,comb55ae,comb66ae,t1a,t2a,t4a,t3a,t5a]=safe(@Together2,C,Dij,i,j,Fj,Uij,DQij)

Output argument "varargout{2}" (and maybe others) not assigned during call to "safe".

First i made one extra function called safe ,as guided by you .then i am just calling my subfunction .but its showing this kind or output.

[Walter Roberson]

function varargout = safe(fcn, varargin)
try 
[varargout{1:nargout}] = fcn(varargin{:}) ;
catch ME:
 varargout(1:nargout) = {nan};
end

Answer 2

[David Hill]

function [out1,out2]=mainfun(input)
out1=nan;out2=nan;   
try [out1]=fun1(input);
end
try [out2]=fun2(input);
end

[Akash Pal]

i tried the ..Its helpfull ,incase of lots of output in the both sub function that time what to do ?should i write also

out1=nan;out2=nan ; for every individual output ?

[Walter Roberson]

You should initialize any output variable that might otherwise not be assigned to because of errors.