[kepler-users] Matlab expression actor

[Daniel Crawl]

Hi Michael,

The parameter name that specifies locations of matlab scripts
should be "packageDirectories". (The workflow you sent me
earlier [matlab_v4.xml], was using "Package Directories").

  --dan


Michael Hernandez wrote:
> Hi All,
>
> I'm still having trouble with the matlab expression actor. I wrote a 
> code in Matlab, that I'd like to run in Kepler, that calls on other 
> files within the Current Directory. I'd like to get two outputs from 
> my code, so I configured two output ports from the Matlab actor of 
> type double. The output it gives me is the same as the initialized 
> variables I set in the code. The conclusion I came up with is either 
> a) the Current Directory is not set correctly in Kepler, b) it's not 
> running through the While loop I have in my code, or c) the matlab 
> actor in Kepler can't pass variables correctly between functions. Here 
> is the code that I put into the matlab expression actor in Kepler:
>
> ---------------------------------------------------------------------------------------------------------
> clear all;
> warning off;
> global count ;
>
> X_ALL(1:14) = 5 ;
> X_SUB1(1:5) = 5 ;
> X_SUB2(1:5) = 5 ;
> X_OLD = X_ALL + 1 ;
>
> save X_SUB1.mat X_SUB1 ;
> save X_SUB2.mat X_SUB2 ;
> count=1;
>
> while ( (norm(X_OLD - X_ALL) > 0.001) )
>   
>     X_OLD = X_ALL ;
>
>     for i = 1:3
>         switch i
>           case 1
>              [result X_ALL] = sys_s(X_ALL);
>           case 2
>              [result X_ALL] = subsys1_s(X_ALL);
>           case 3
>              [result X_ALL] = subsys2_s(X_ALL);
>           otherwise
>              result = 0;
>              X_ALL = X_ALL;
>         end
>     end
>     count = count + 1 ;
> end
>
> X_SUB1 = [ X_ALL(3) X_ALL(8)   X_ALL(9)   X_ALL(10)  X_ALL(11) ]
> X_SUB2 = [ X_ALL(6) X_ALL(11) X_ALL(12)  X_ALL(13) X_ALL(14) ]
>
> save X_SUB1.mat X_SUB1 ;
> save X_SUB2.mat X_SUB2 ;
>
> ------------------------------------------------------------------------------------------------------------------------
>
> And what I'd like to output from the code is the modified X_SUB1 & 
> X_SUB2 at the end. But in Kepler, the display shows X_SUB1(1:5) = 5  
> &  X_SUB2(1:5) = 5 ; which is what was initialized at the top.
>
> Another question I have is: Is there a newer version of Kepler, or is 
> the nightly build just the newer version??
>
> Thanks for the help,
>
> -- 
> Michael Hernandez
> University of Illinois - Electrical Engineering
> SHPE | UIUC Alumni Relations Chair
> Cell#: 847-736-3889
> ------------------------------------------------------------------------
>
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