[R] weighted standard deviation

[Uwe Ligges]

Schnitzler, Johannes wrote:

> Dear all,
> 
> is there an implemented function to compute a
> weighted standard deviation (-like weighted.mean-) in R ?

No, AFAIK. In particular, I'm interested in your definition of a 
weighted standard deviation (incl. a reference to that definition).

Uwe Ligges


> 
> Thank's a lot in advance
> 
> 
> Johannes Schnitzler