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Math Forum » Discussions » Software » comp.soft-sys.matlab

Topic: 'index exceeds matrix dimensions' using text function with bar
plot
Replies: 7   Last Post: Jan 31, 2013 10:21 AM

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dpb

Posts: 6,853
Registered: 6/7/07
Re: 'index exceeds matrix dimensions' using text function with bar
Posted: Jan 31, 2013 10:21 AM
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On 1/30/2013 1:30 PM, dpb wrote:
...

> >> stats={[A' B]}
> stats =
> [5x3 double]
> >> y=cell2mat(stats(:,[2 3]));
> Index exceeds matrix dimensions.
...

> The problem is you can't subreference the array contents from the cell
> that way because the dimensions refer to the cell _array_ dimensions,
> not those of the data _in_ the cell.
...

And, BTW, what you're looking for is handled by 'multi-level
addressing'--you can do w/o the cell2mat() and access the data directly
by writing

y=stats{1}(:,[2 3]);

Note the curlies are on the cell to dereference, then the normal parens
around the content to select them elements.

There's a whole section in the doc on referencing cell contents directly...

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