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Topic: How to retrieve the given column of the data of arbitrary size?
Replies: 7   Last Post: Nov 18, 2012 6:14 PM

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Posts: 18
Registered: 5/18/11
Re: How to retrieve the given column of the data of arbitrary size?
Posted: Nov 18, 2012 6:14 PM
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"Steven_Lord" <> wrote in message <k80civ$n39$>...
> "Jan Simon" <> wrote in message
> news:k7thlr$qm2$

> > Dear Bruno,
> >> ind = {':', 3, ':', ':' };
> >> A3=squeeze(A(ind{:}))

> >
> > I like this method. It is used in Matlab's toolbox functions, but is it
> > documented also?

> I don't believe it's explicitly documented. This is about as close as the
> documentation gets to describing that behavior.
> " A colon used as an index is passed in the cell array as the string ':'. "
> --
> Steve Lord
> To contact Technical Support use the Contact Us link on

One would think that this behavior (and any other aspects of indexing for Matlab arrays) should be documented here:

Also, (at least in earlier versions of Matlab), indexing with characters is allowed, like this:
A('a') and A('ab'). Since that wasn't documented, it's not clear if that's supposed to be legal syntax. Further confusing the issue is that A('a') and A(':') are treated inconsistently. The former returns a single element of A (converting 'a' to its ASCII code I believe) and the latter returns all of A.

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