[Rivet] [Yoda] YODA development

[Frank Siegert]

Ben Waugh, Monday 02 November 2009:
> To recap, I still think that:
>   * bin height = sum(w)
>   * error on bin height = sqrt(sum(w^2))
> This follows intuitively from something like:
>   w1(1+-1) + w2(1+-1) + ... wn(1+-1)
>   = (w1 + w2 + ... + wn) +- sqrt(w1^2 + w2^2 + ... wn^2)
> But yes, a definitive reference and/or a more rigorous derivation would
> be nice.

This is also discussed and confirmed at

http://www-
zeuthen.desy.de/~wischnew/amanda/discussion/wgterror/working.html

Now I am not sure whether this is also valid for negative weights, and I 
don't have any experience with them.

Frank