standard deviation in errorbar
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Sim
el 3 de Mzo. de 2021
Comentada: Star Strider
el 3 de Mzo. de 2021
x=1:10;
y=rand(10,50);
errorbar(x, mean(y,2), std(y,[],2)) % 1 standard deviation
Just multiplying std by 2 in the errorbar, right?
errorbar(x, mean(y,2), 2 * std(y,[],2))
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Star Strider
el 3 de Mzo. de 2021
Not silly at all, however it may not produce the result you want.
It might be more appropriate to calculate the errors as the standard error of the mean (S.E.M.) :
err = 2*(std(y,[],2)/sqrt(size(y,2))); % 2 x Standard Error Of The Mean
then:
figure
errorbar(x, mean(y,2), err) % 2 standard errors of the mean
rather than the standard deviation of the observations themselves.
4 comentarios
Rik
el 3 de Mzo. de 2021
You're welcome.
(I deleted my answer as it overlapped with this answer too much, and this one was better)
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