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In line 1, the funfcn input parameter receives the function handle that was passed in. A small portion of the fminbnd M-file is shown below. The fminbnd function evaluates the function handle. This example passes the function handle just created to fminbnd, which then minimizes over the interval. fhandle = the handle to another function in the same way you would pass any argument.The following example creates a function handle for the humps function and assigns it to the variable fhandle. Use isa (h, 'function_handle') to see if variable h is a function handle.Įxample 1 - Constructing a Handle to a Named Function
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When you evaluate an overloaded function by means of its handle, the arguments the handle is evaluated with determine the actual function that MATLAB dispatches to. S.a = S.b = S.c = standard matrices or arrays of function handles are not supported:įor nonoverloaded functions, subfunctions, and private functions, a function handle references just the one function specified in the syntax.This includes using function handles in structures and cell arrays: As such, you can manipulate and operate on function handles in the same manner as on other MATLAB data types. The function handle is a standard MATLAB data type. Execute the function by calling it by means of the function handle, handle. arglist is a comma-separated list of input arguments. The body of the function, to the right of the parentheses, is a single MATLAB statement or command. Handle = an anonymous function and returns a handle to that function. You can, for example, execute a subfunction from a separate (out-of-scope) M-file using a function handle as long as the handle was created within the subfunction's M-file (in-scope). This condition does not apply when you evaluate the function handle. A function handle is one of the standard MATLAB data types.Īt the time you create a function handle, the function you specify must be on the MATLAB path and in the current scope. You can also store function handles in data structures for later use (for example, as Handle Graphics callbacks). You can pass function handles in calls to other functions (often called function functions). handle = a handle to the specified MATLAB function.Ī function handle is a MATLAB value that provides a means of calling a function indirectly.Function_handle (MATLAB Functions) MATLAB Function Referenceįunction_handle used in calling functions indirectly