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| From: | Ismael Núñez-Riboni |
| Subject: | Re: var(1) = 0 ?? |
| Date: | Fri, 27 Jan 2012 22:06:14 +0100 |
| User-agent: | Mozilla/5.0 (X11; Linux i686; rv:8.0) Gecko/20111124 Thunderbird/8.0 |
Is there a particular reason that octave (and matlab) has var(1) = 0?
It is correct, the variance of a single sample is zero and not only in matlab and octave... :-) you do not only get the same if you take var(2) = var(5) = var(c) = 0, where is c a constant, etc, but also if you take a time series with constant values, for instance, var(ones(1,10)) = 0... Cheers, Ismael.
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