Loren on the Art of MATLAB

Turn ideas into MATLAB

Results for: Indexing

Get Smart, Be Logical! 4

Recently a customer asked me an interesting question about a good way to compute something. Before I sat down to tackle it, I happened to mention the problem to my pal, Sean. And he quickly answered, "max logical". It took me just a moment to realize what he was saying, and it is the answer to the problem. But when I heard it, I heard a person's name "Max Logical", and though I didn't know who that was, I immediately thought of Maxwell Smart, from the 60s tv comedy in the US, called "Get Smart".... read more >>

Logical Indexing – Multiple Conditions 15

I've talked about logical indexing before in some of the linked posts, but recent work makes me want to show it off again. One of the nice things about logical indexing is that it is very easy and natural to combine the results of different conditions to select items based on multiple criteria.... read more >>

Meet the Neighbors 9

Some calculations in MATLAB, including, for example, calculating local means or finite differences, or applying some other filter locally, operate on neighboring matrix elements. Doing so in an efficient manner is easy under the right conditions ... read more >>

Rearranging Data 16

I can think of a lot of functions that rearrange data in MATLAB. I've long suspected that not all of these are well-known, though some are clearly daily tools. Maybe it's time to be sure they get exposure. ... read more >>