Campus Livre
feval
Calls a function given by handle or by name.
Category: Language Fundamentals > Data Types
Syntax
[y1, ..., yN] = feval(fun, x1, ..., xM)Calls fun with the arguments x1 to xM and returns its outputs.
Description
feval(@f, a, b) is the same as f(a, b). It is useful when the function to run is chosen at run time, for example read from a variable or a struct field. With a handle, calling fun(a, b) directly is usually clearer.
Input arguments
fun- Function handle, or the name of a function as text.
x1, ..., xM- Arguments passed on to
fun.
Output arguments
y1, ..., yN- Outputs of
fun. The number requested is passed on, so[m, i] = feval(@max, v)gets both outputs.
Example
By name and by handle
feval('max', [1 5 2])
feval(@(a, b) a + b, 2, 3)
[m, i] = feval(@max, [4 9 2])Output
ans = 5
ans = 5
m = 9
i = 2