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how to use a parameter name list as input for a function?

조회 수: 21 (최근 30일)
Skirt Zhang
Skirt Zhang 2013년 4월 3일
Dear All,
I have a tryparel function as below
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
function out=tryparel(paramlist)
disp(a)
disp(b)
out=a+b;
%%%%%%%%%%%%%%%%%%%%%%%%%%%
To use this function above I would like to do below
paramlist=['a,' , 'b'];
out=tryparel(paramlist)
BUT I always get errors. Can anyone help me about this?
I have to write a script calling this type of function where the input variable list is really long.
Thanks

답변 (1개)

Sven
Sven 2013년 4월 3일
편집: Sven 2013년 4월 4일
Skirt, you were very close. You just need to use a cell array:
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
function out=tryparel(paramlist)
disp(a)
disp(b)
out=a+b;
%%%%%%%%%%%%%%%%%%%%%%%%%%%
paramlist = {4 , 10};
out = tryparel(paramlist{:})
If you instead want to do something like this:
a = 4;
b = 10;
paramlist = {'a','b'};
... then don't do this. Instead use a structure such as:
P.a = 4;
P.b = 10;
paramNameList = {'a','b'};
paramList = cellfun(@(name)P.(name), paramNameList, 'Un',0)
out = tryparel(paramList{:})
Did this answer your question? If so, be sure to hit "accept".
  댓글 수: 3
Sven
Sven 2013년 4월 4일
편집: Sven 2013년 4월 4일
Oh, small typo. Use:
out = tryparel(paramList{:})
instead of:
out = tryparel(paramlist{:})
In my last example I used some capital letters to help distinguish between paramNameList (which is just the set of variable names to use) and paramList which is the actual variables.
Skirt Zhang
Skirt Zhang 2013년 5월 9일
thanks a lot

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