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Topic: Colon with empty input
Replies: 4   Last Post: Jan 28, 2013 11:17 AM

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Loren Shure

Posts: 1,044
Registered: 12/7/04
Re: Colon with empty input
Posted: Jan 28, 2013 11:17 AM
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"Steven_Lord" <slord@mathworks.com> wrote in message
> "Bruno Luong" <b.luong@fogale.findmycountry> wrote in message
> news:ke2pek$b95$1@newscl01ah.mathworks.com...

>>>> 1:[]
>> ans =
>> Empty matrix: 1-by-0
>> Does this is documented?

> It doesn't appear to be; I'll ask the documentation staff to add it. I
> believe the rule is that if any of the three arguments of the : operator
> are empty, the result should be a 1-by-0 empty.
> --
> Steve Lord
> slord@mathworks.com
> To contact Technical Support use the Contact Us link on
> http://www.mathworks.com

It may not be explicitly documented, but the : operator outputs a row
vector, size 1xN. The empty row vector has size 1x0.


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