## [Auto Correlation] Calculating Auto Correlation Matrix with Given Weighted Mean

Assume that mean of some weighted data calculated. $m=\frac{\sum_{i=1}^{n} w_i x_i}{\sum_{i=1}^{n} w_i}$

i want to calculate $C=\sum_{k=1}^{n}w_i x_i x_i^T$

But i dont have access to any $x_i$.

I only got $m$ and every $w_i$.

Is there any relation between these variables?

Regards.

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 No, basically any $C$ can arise given most values of your data. This question is not suitable for this site, please read the FAQ before posting. – Benoît Kloeckner Nov 19 at 20:19 Thanks Benoit for your reply. I dont see any violation of law, but if there is one, i would delete this post for sure. let me know about that. regards. – Amin Nov 20 at 5:46