Ken & Mike on the MATLAB Desktop

October 29th, 2007

If you are using MATLAB with a lot of toolboxes and blocksets, there is a lot of documentation available to you in the Help browser. That’s almost always a good thing, but if you’re primarily interested in just a few of your installed products the others might just be cluttering up the Help browser, making it harder for you to quickly find what you need. With the product filter, you can configure the Help browser to only show documentation from the products that you really need help for.

To set the product filter, open the Preferences dialog (File -> Preferences…) and select “Help” in the left-hand side. You can get to the help preferences quickly from the command window by running

>> preferences Help

Check the box labeled “Enable product filter”, then click on the “Select products…” button to bring up the product filter dialog.

The product filter applies to the Contents, Index, Search, and Demos tabs in the Help browser, but does not apply to MATLAB commands such as help or doc. So, for example, if you have the product filter configured to hide the MATLAB documentation, you can still bring up the reference page for the MATLAB plot function by running

>> doc plot

By Chris Kollett

Chris is a developer on the MATLAB help team. When he's not working on the Help Browser, he can often be found at Fenway Park.

12:08 UTC | Posted in Help Browser, Preferences | Permalink |

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3 Responses to “Filter your help”

1. Ramon Bello replied on September 8th, 2008 at 00:44 UTC :
   

   Hello,

   I have a problem with Matlab not graphing a function. I have certain constants defined except I have variable “h” and a function “Ts”.

   I have this equation:
   0.13=b.*p.*A.*((Ts.^4)-(Tsurr.^4))+h.*(Ts-Tamb)*A

   I want to graph that function, but I have a hard time to define “Ts” as a function, but “h” is defined as a variable as I used {syms h} as a command.

   When I try to ezplot the function I get:
   rror in ==> ezplot>ezparam at 372
   X = ezplotfeval(x,T);

   Error in ==> ezplot at 163
   hp = ezparam(cax,f{1},f{2},vars,labels,args{2:end});

   Error in ==> sym.ezplot at 60
   h = ezplot(f.s,varargin{:});

   I don’t understand the language and I need help how to plot this function implicitly.

   Please can you help me?
   -Ramon

2. Scott Hirsch replied on September 8th, 2008 at 08:48 UTC :
   

   Ramon -

   This isn’t the best forum to get help on a question like this. I’d like to suggest that you provide as much detail as you can, and either contact technical support (http://www.mathworks.com/support/), or post on the MATLAB newsgroup (http://www.mathworks.com/matlabcentral/newsreader/).

   - scott

3. DP replied on November 21st, 2009 at 02:16 UTC :
   

   Hi

   i have a problem with ezplot3, i want to plot more than i curve in the same graph but hold on command doesn’t work with ezplot3. is there any other function, ideas to use instead.
   regds
   DP

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<pre class="code">
a = magic(3);
sum(a)
</pre>

These postings are the author's and don't necessarily represent the opinions of The MathWorks.