Doug’s MATLAB Video Tutorials

August 20th, 2008

Advanced MATLAB: Dynamic field names

 We have MATLAB users come into The MathWorks to present their work in MATLAB from time to time. Recently there was an interesting presentation with some really great “Clutter classification” algorithms in a GUI. One of the questions that came out of that discussion was how to get rid of a bunch of EVAL statements from their code. The following code shows how they can be avoided using “dot parens notation”, or Dynamic Field Names as they are formally known. a.doug = ‘Hull’ a.jiro = ‘Doke’ name = ‘doug’; last = a.doug eval([’last = a.’ name]) %BAD last = a.(name) %GOOD
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By Doug Hull

10:23 UTC | Posted in Format: PodCast, Format: Video, Level: Advanced | Permalink |

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Wrap code fragments inside <pre> tags, like this:

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

If you have a "<" character in your code, either follow it with a space or replace it with "&lt;" (including the semicolon).

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Doug Hull is a proud MathWorker who is on a mission to help you with MATLAB.

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