How can I pass a function name into another function?
显示 更早的评论
I try to make something flexible that gives a function name as a variable name.
Tried the following:
file named tt.m
function tt
x = 0:10;
y1 = testfun(@line,x);
y2 = testfun(@quad,x);
end
file named testfun.m:
function b = testfun(fun, x)
b = fun(x);
function y = line(x)
y = x;
end
function y = quad(x)
y = x.^2;
end
end
How to get it working?
Any help appreciated!
采纳的回答
The functions that you nested inside TESFUN are only visible within TESTFUN:
You could either write them as functions in their own files or write them as normal local functions:
x = 0:10;
y1 = testfun(@line,x)
y2 = testfun(@quad,x)
function b = testfun(fun, x)
b = fun(x);
end
function y = line(x)
y = x;
end
function y = quad(x)
y = x.^2;
end
更多回答（1 个）
"fun" is an external input argument to "testfun". Thus "fun" can not be used as a nested function in "testfun".
Using "line" and "quad" as independent external functions that are not nested within "testfun" will work.
Or use
tt
function tt
x = 0:10;
y1 = testfun(@line,x)
y2 = testfun(@quad,x)
function b = testfun(fun, x)
b = fun(x);
end
function y = line(x)
y = x;
end
function y = quad(x)
y = x.^2;
end
end
类别
在 帮助中心 和 File Exchange 中查找有关 Programming 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
