Is there the more elegant way to do this?

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G A
G A 2014-1-28
编辑： G A 2014-1-31
I would like to call arguments of function from a string or cell array. For example, this code works as I want:
function testarg()
a=1;b=2;c=3;
m='a,b,c';
eval(['myfun(',m,')']);
function myfun(a,b,c)
a
b
c
Is there another way to do this? Say, without using eval ?
  2 个评论
Jos (10584)
Jos (10584) 2014-1-29
Just a tip: whenever you found yourself using eval, you will be 99.999% sure that there is a way to do it some other way without using eval that is:
  • more efficient
  • less error-prone
  • without hideous side-effects
  • easy to code, read and maintain
  • ...
eval(char('chro''&HB@MCNVHSGNTSDU@K &('+1))
G A
G A 2014-1-29
编辑：G A 2014-1-29
Thanks, Jos. I knew how 'bad' is eval- this matter was intensively discussed here by the community. I just wanted to demonstrate my purpose - it was my desperate try to achieve what I want.:)

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采纳的回答

Matt J
Matt J 2014-1-28
function myfun(varargin)
varargin{:}
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Matt J
Matt J 2014-1-31
编辑：Matt J 2014-1-31
It sounds like you should be assigning your data to struct fields, rather than to individual variables.
S.a=1;
S.b=2;
S.c=3;
Now everything is conveniently bundled in S and you can pass that around to functions as a single argument.
G A
G A 2014-1-31
编辑：G A 2014-1-31
Thanks, Matt! Now I can rename all my variables myname to S.myname and use them as before within my program and pass to functions as single argument S. Previous solution - to use variables as C{1}, C{2} is not convenient - without names. Originally, I thought there could be a way to pass the names as 'a', 'b', which I could bundle as C={'a','b'}...

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更多回答（1 个）

Amit
Amit 2014-1-28
function testarg()
a=1;b=2;c=3;
abc(a,b,c)
function abc(a,b,c)
a
b
c
This wil ldo just fine.
  4 个评论
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Amit
Amit 2014-1-28
See MAtt's solution. That will do it.

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