Help to avoid the eval() function

3 次查看（过去 30 天）
Yunhui Zhou
Yunhui Zhou 2016-11-5
编辑： John D'Errico 2016-11-5
I currently have problem using the feval() function to replace the eval() function.
The user will input a string array "function_name", which is the name of the function_name.m file; and a cell array "varargin", in which each cell is an input argument for the function_name.m file. The number of cells in "varargin" can't be determined.
Currently I'm using a for-loop to generate a string "function_name(varargin{1},varargin{2},...)", and then using the eval() function to execute the string, and it works. However, I wish to replace the eval() function with feval() function, but it seems hard to transfer all the input arguments. Is it possible to do the replacement?

请先登录，再回答此问题。

回答（3 个）

KSSV
KSSV 2016-11-5
Guillaume
Guillaume 2016-11-5
feval(function_name, varargin{:})
Will call the function with however many arguments are stored in varargin.
John D'Errico
John D'Errico 2016-11-5
编辑：John D'Errico 2016-11-5
Easy, peasy:
y = feval(fun,varargin{:});
The {:} makes a cell array (i.e., varargin) into what is called a comma separated list,exactly what feval needs. This is how you expand a cell array into an argument list.

类别

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

标签

产品

Community Treasure Hunt

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

Start Hunting!

Translated by