Construct a single anonymous function from a cell array of anonymous functions

4 次查看（过去 30 天）
Leo Simon
Leo Simon 2021-12-11
评论： Leo Simon 2021-12-15
I want to run a double loop that creates an anonymous function
h
consisting of the cell array of anonymous functions f . I can do it long-hand, the way that I constructed
g
but that's obviously hopelessly inefficient when f has a large size. I presume I need to use arrayfun but the examples that matlab provides don't help me. Thanks for any suggestions.
Here's my example for how I constructed g.
function nothing
syms a b c d
f{1,1}= @(a,b,c,d) a;
f{1,2}= @(a,b,c,d) b;
f{2,1}= @(a,b,c,d) c;
f{2,2}= @(a,b,c,d) d;
g = @(a,b,c,d)[ f{1,1}(a,b,c,d),f{1,2}(a,b,c,d);f{2,1}(a,b,c,d),f{2,2}(a,b,c,d)];
g(1,2,3,4)
keyboard;

请先登录，再回答此问题。

采纳的回答

Voss
Voss 2021-12-15
If f is a cell array of handles to functions that return a scalar result, then you can use cellfun and feval to achieve the result you want:
h = @(a,b,c,d)cellfun(@(x)feval(x,a,b,c,d),f);

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Structures 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by