[R] Problem with Weighted Variance in Hmisc

From: Tom La Bone <labone_at_gforcecable.com>
Date: Thu, 31 May 2007 19:03:35 -0400

 

The function wtd.var(x,w) in Hmisc calculates the weighted variance of x where w are the weights. It appears to me that wtd.var(x,w) = var(x) if all of the weights are equal, but this does not appear to be the case. Can someone point out to me where I am going wrong here? Thanks.  

Tom La Bone

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