Hi Ruben, See the discussion about Minuit Errors Estimate and correlations at http://root.cern.ch/root/htmldoc/TMinuit.html Rene Brun Ruben Ter-Antonyan wrote: > > Hi rooters, > > When you use "mnemat" to calculate the external error matrix, > do the off-diagonal elements come out as _correlation_ coeffitients > rather than covariance ? > > I've read a MINUIT document where I saw that statement about MINOS. > I was wondering if it general for _external_ error matrices. > > Thanks a lot! > Ruben
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