MATLAB: How to check which function called the function ‘thefun’ within the function itself in MATLAB

MATLAB

If I have two functions f1 and f2 and want to know which one of f1 and f2 called myfun from the function itself. Is there a function that checks for this. The reason I need this is for example in myfun:

function myfun
{if (f1 called myfun)
set c = 1;
elseif (f2 called myfun
set c =2)}

Best Answer

One way is to put flags in the functions f1 and f2.

For example if you have functions f1,f2 and g, to check who called function g you can just set a flag in f1 (c = 1) and in f2 as (c = 2) and in g you do check for the flags using the command:

evalin('caller', 'c')

Related Solutions

MATLAB: How to use one function in another function

Hi Sushanth,

When the functions f1 and F2 are in the path where function f3 can acess, then you can directly use the functions name to access the function.

For example,

function out = f3(in1,in2) a = f1(in1); % call th function signature end As shown above the usage with f1, even F2 can be called within the function f3.

The scope variables within a function are only present till the execution is within the function. Thus, you cannot acces intermediate variables of f1 and f2 in f3. In case it is required to use them, pass them as outputs to the respective functions.

For more details about functions, look at topics in the page here .

Hope this helps. Regards, Sriram

MATLAB: Integration using quad(@thefun,a,b)

Your AW_int function doesn’t take any input arguments:

function AW1= AW_int()

Also, you are not passing any arguments to these functions within AW_int, so they will likely throw a similar error when AW_int executes:

    ASqr=aSqrSum();
    BSqr=bSqrSum();
    C=CSum();

They all require x and N as inputs, so pass those to AW_int and then to the other functions.

Best Answer

Related Solutions

MATLAB: How to use one function in another function

MATLAB: Integration using quad(@thefun,a,b)

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