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From: wm m on 26 Apr 2010 22:14
Hi,

I am wondering if it is legal to return a structure from a matlab function. Also, is it allowed to take as input to a function a matlab structure. I would appreciate some examples if it is possible to do so.

Thanks.

Majid
From: Image Analyst on 26 Apr 2010 22:51
Example:
In file test1.m:


function test1
clc;
inputStruct.v1 = 42;
inputStruct.v2 = 69
outputStruct = MakeStruct(inputStruct)
return;

function outputStr = MakeStruct(inputStr)
outputStr.Value1 = 10 * inputStr.v1;
outputStr.Value2 = 10 * inputStr.v2;
return;
From: us on 27 Apr 2010 00:27
"wm m" <wm.do.not.use(a)yahoo.com> wrote in message <hr5h9d$2ol$1(a)fred.mathworks.com>...
> Hi,
>
> I am wondering if it is legal to return a structure from a matlab function. Also, is it allowed to take as input to a function a matlab structure. I would appreciate some examples if it is possible to do so.
>
> Thanks.
>
> Majid

suffice it to say: yes, of course...
no examples need to clutter CSSM - just create some code by yourself...

us
From: Steven Lord on 27 Apr 2010 09:55

"wm m" <wm.do.not.use(a)yahoo.com> wrote in message
news:hr5h9d$2ol$1(a)fred.mathworks.com...
> Hi,
>
> I am wondering if it is legal to return a structure from a matlab
> function.

Sure, a struct array is a regular MATLAB variable and so there's no reason
it wouldn't. Is there something you read/heard that would imply otherwise?
If so, I'd appreciate a link to whatever it is; if it's part of our
documentation, perhaps we need to revise that part to make it clearer.

> Also, is it allowed to take as input to a function a matlab structure.

See above.

> I would appreciate some examples if it is possible to do so.

There are many functions that return struct arrays -- probably the most
commonly used one is DIR.

D = dir('*.m')

For functions that accept a struct ... most of the ones that come to mind
have many additional inputs, but here's one that displays the contents of a
struct.


function displayStructure(S)
if ~isstruct(S)
error('displayStructure:notAStruct', 'Input argument must be a struct
array.');
end
fn = fieldnames(S);
for k = 1:numel(fn)
fprintf('S has a field %s.\n', fn{k});
end


--
Steve Lord
slord(a)mathworks.com
comp.soft-sys.matlab (CSSM) FAQ: http://matlabwiki.mathworks.com/MATLAB_FAQ


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