[R-sig-finance] covariance

[McGehee, Robert]

I believe the equivalent is to use the cov.wt() function, which returns
a weighted covariance matrix for any arbitrary weight vector. Just
choose your weight vector from an exponential (decay) function.

Robert

-----Original Message-----
From: Omar Lakkis [mailto:abu3ammar at gmail.com] 
Sent: Friday, December 10, 2004 12:36 PM
To: r-sig-finance at stat.math.ethz.ch
Subject: [R-sig-finance] covariance


Is there an R function that is equivalent to S-PLUS's EWCE.cov() --
Exponentially Weighted Covariance Estimate?

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