Thread Subject:

PUBLISH on a function with several arguments

I am writing in reference to this question : "How do I use PUBLISH on a function if I want to also pass in an argument to that function in MATLAB 7.7 (R2008b)? "

that I have been answered here :

http://www.mathworks.com/support/solutions/en/data/1-97WVV6/?solution=1-97WVV6

However, I can get it work when I have more than one arguments to my function. Answer says that "If your function has more than one input variable, one potential solution is to use VARARGIN to handle multiple input arguments or to encapsulate the input args in a cell array to be read in as the third argument".

Ok, but in pratice, how do you write your code ?
Can someone help me ?

If you use the two M-functions given at the bottom of the webpage (link given below) and if you change the foo.m function as :

function foo(a,b)
% a is a vector
% b is for instance a color : 'r'
plot(a,b);
end

then how do you modify the function mypublish.m ?

Best regards,

Herv

> However, I can get it work when I have more than one arguments to my function.

Sorry... One must read : I CANNOT get it work when I have more than one arguments to my function.

"Herve " <michaud_rene@yahoo.fr> wrote in message
news:hc40op$5iv$1@fred.mathworks.com...
>I am writing in reference to this question : "How do I use PUBLISH on a
>function if I want to also pass in an argument to that function in MATLAB
>7.7 (R2008b)? "
>
> that I have been answered here :
>
> http://www.mathworks.com/support/solutions/en/data/1-97WVV6/?solution=1-97WVV6
>
> However, I can get it work when I have more than one arguments to my
> function. Answer says that "If your function has more than one input
> variable, one potential solution is to use VARARGIN to handle multiple
> input arguments or to encapsulate the input args in a cell array to be
> read in as the third argument".
>
> Ok, but in pratice, how do you write your code ?
> Can someone help me ?

What version of MATLAB are you using? If you're using release R2008a or
later, use a publish configuration.

http://www.mathworks.com/access/helpdesk/help/techdoc/rn/brga7wp-1.html#brg9eej-1

Alternately, if you want to do this programmatically, use the codeToEvaluate
option described in HELP PUBLISH.

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

Hi Steven,

Thanks for your answer :-)

yes, I want my documents to be generated automatically and therefore I want to use the PUBLISH function.

Yes, I know that I have to use the codeToEvaluate option. But how to use this option when you have two or more input arguments ?

Here is the exemple given by Mathworks...

If you have a function foo

%%%%%%%%
function foo(a)
plot(a);
end
%%%%%%%%%

then to publish on this function, you have to create the following mypublish function

%%%%%%%%
function mypublish(fun,funcall,inputs)

opts.codeToEvaluate=[
    inputs, char(10),...
    funcall,char(10)];

publish(fun,opts)
%%%%%%%%

and then call the following command :

mypublish('foo','foo(a)','a=1:10')


***********************************************

My question is :

How do you modify the function mypublish when the function foo is

%%%%%%%%
function foo(a,b)
plot(a,b);
end
%%%%%%%%%

I hope that I have been clear enough now...

Herv

"Herve " <michaud_rene@yahoo.fr> wrote in message
news:hc4c36$hj8$1@fred.mathworks.com...
> Hi Steven,
>
> Thanks for your answer :-)
>
> yes, I want my documents to be generated automatically and therefore I
> want to use the PUBLISH function.
>
> Yes, I know that I have to use the codeToEvaluate option. But how to use
> this option when you have two or more input arguments ?
>
> Here is the exemple given by Mathworks...
>
> If you have a function foo
>
> %%%%%%%%
> function foo(a)
> plot(a);
> end
> %%%%%%%%%
>
> then to publish on this function, you have to create the following
> mypublish function
>
> %%%%%%%%
> function mypublish(fun,funcall,inputs)
>
> opts.codeToEvaluate=[
> inputs, char(10),...
> funcall,char(10)];
>
> publish(fun,opts)
> %%%%%%%%
>
> and then call the following command :
>
> mypublish('foo','foo(a)','a=1:10')
>
>
> ***********************************************
>
> My question is :
>
> How do you modify the function mypublish when the function foo is
>
> %%%%%%%%
> function foo(a,b)
> plot(a,b);
> end
> %%%%%%%%%
>
> I hope that I have been clear enough now...

publish('foo.m', struct('codeToEvaluate', 'foo(1:10, (1:10).^2)',
'showCode', false))

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

Thank you Steve for your answer.
That saves me a lot of time...

Something tricky !

Let's continue with the same function :

%%%%%%%%
function foo(a,b)
plot(a,b);
end
%%%%%%%%%

1) If I use directly the command window, and enter the following commands, it works.

>> a = 1:10;
>> b = 'r';
>> publish('foo',struct('codeToEvaluate','foo(a,b)','showCode',false))

2) However, if I create another function

%%%%%%%%
function call_foo
a = 1:10;
b = 'r';
publish('foo',struct('codeToEvaluate','foo(a,b)','showCode',false))
end
%%%%%%%%

and then run this function, I get an error message :

>> call_foo
Error using ==> evalin
Undefined function or variable 'a'.


WHY ?

H.

"Herve " <michaud_rene@yahoo.fr> wrote in message
news:hcttkh$580$1@fred.mathworks.com...
> Something tricky !
>
> Let's continue with the same function :
>
> %%%%%%%%
> function foo(a,b)
> plot(a,b);
> end
> %%%%%%%%%
>
> 1) If I use directly the command window, and enter the following commands,
> it works.
>
>>> a = 1:10;
>>> b = 'r';
>>> publish('foo',struct('codeToEvaluate','foo(a,b)','showCode',false))
>
> 2) However, if I create another function
>
> %%%%%%%%
> function call_foo
> a = 1:10;
> b = 'r';
> publish('foo',struct('codeToEvaluate','foo(a,b)','showCode',false))
> end
> %%%%%%%%
>
> and then run this function, I get an error message :
>
>>> call_foo
> Error using ==> evalin
> Undefined function or variable 'a'.
>
>
> WHY ?

I believe when you specify codeToEvaluate, it evaluates that code in the
base workspace, but I'm not 100% certain on that. I recommend you try to
ASSIGNIN the variables into the base workspace and try the code again. If
that works, you have a workaround but you might want to contact Technical
Support and describe your use case for this situation so they can capture it
as an enhancement request for publishing.

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

Excellent. That works now thanks to ASSIGNIN.

%%%%%%%%
function call_foo
 a = 1:10;
 b = 'r';
assignin('base','a',a)
assignin('base','b',b)
publish('foo',struct('codeToEvaluate','foo(a,b)','showCode',false))
end
%%%%%%%%

Thanks Steve.
I'll contact the support team about this issue.

H.