Effacer les filtres
Effacer les filtres

How can calculate this formula?

1 vue (au cours des 30 derniers jours)
fede
fede le 5 Nov 2015
Modifié(e) : Torsten le 6 Nov 2015
I have a matrix of price time series (p1,p2...pn) and their weights w(1,n). How can calculate this formula?

Réponses (1)

Matt J
Matt J le 5 Nov 2015
Modifié(e) : Matt J le 5 Nov 2015
v = w(:) .* sigma(:);
sigmaIndex = v.' * rho * v;
  3 commentaires
Matt J
Matt J le 5 Nov 2015
I had a typo. The 2nd line should be
sigmaIndex = v.' * rho * v;
If that wasn't the misunderstanding, it's unclear what is. All of the variables are from notation given by you in your post.
Torsten
Torsten le 6 Nov 2015
Modifié(e) : Torsten le 6 Nov 2015
Note that the diagonal of the matrix rho has to be set to 1.
Best wishes
Torsten.

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