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From: Chris on 14 Mar 2010 20:18
I am trying to store a bunch of vectors which are returned from a function being used in a for loop. The function called 'function' will return a vector (of undetermined varying length) depending on the data fed into it (from Dataset).

for i = 1:40
Results(i,:) = function(Dataset(i));
end

The only way I've been able to make this sort-of-work so far is to turn the vector inside 'function' into a structure, and return the structure to be stored in Results(i). Is there an easier way to do this without having to modify 'function'?
From: Jan Simon on 14 Mar 2010 22:31
Dear Chris!

> I am trying to store a bunch of vectors which are returned from a function being used in a for loop. The function called 'function' will return a vector (of undetermined varying length) depending on the data fed into it (from Dataset).

You can use a cell:
Results = cell(1, 40);
for i = 1:40
Results{i} = fun(Dataset(i));
end

BTW: "function" is no valid function name.

Kind regards, Jan
From: James Tursa on 14 Mar 2010 22:39
"Chris " <haller(a)engr.orst.remove.this.edu> wrote in message <hnjubt$1ad$1(a)fred.mathworks.com>...
> I am trying to store a bunch of vectors which are returned from a function being used in a for loop. The function called 'function' will return a vector (of undetermined varying length) depending on the data fed into it (from Dataset).
>
> for i = 1:40
> Results(i,:) = function(Dataset(i));
> end
>
> The only way I've been able to make this sort-of-work so far is to turn the vector inside 'function' into a structure, and return the structure to be stored in Results(i). Is there an easier way to do this without having to modify 'function'?

You might consider a cell array. e.g.,

Results{140} = []; % pre-allocate
for i = 1:40
Results{i} = function(Dataset(i));
end

James Tursa
From: Jos (10584) on 15 Mar 2010 02:41
"Chris " <haller(a)engr.orst.remove.this.edu> wrote in message <hnjubt$1ad$1(a)fred.mathworks.com>...
> I am trying to store a bunch of vectors which are returned from a function being used in a for loop. The function called 'function' will return a vector (of undetermined varying length) depending on the data fed into it (from Dataset).
>
> for i = 1:40
> Results(i,:) = function(Dataset(i));
> end
>
> The only way I've been able to make this sort-of-work so far is to turn the vector inside 'function' into a structure, and return the structure to be stored in Results(i). Is there an easier way to do this without having to modify 'function'?

Besides using a cell array, you *can* use a structure without modifying the function you are calling:

for i = 1:40
% as said before ,
% "function" is an invalid name ...
Results(i).values = function(Dataset(i));
end

hth
Jos
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