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problem about getdist margestats

Posted: January 28 2019
by Duke Deng
Hi,
I have a problem when using getdist to get .margestats file of my chain. The samples of one my parameter gather at one side in the 1D marginalized density plot. However, when I get the .margestats file, the mean(4.09) of this parameter is larger than its upper1(3.97). I wonder if it is normal in getdist? Under what circumstances will this happen? Thanks a lot !

Re: problem about getdist margestats

Posted: January 28 2019
by Antony Lewis
Anything sufficiently skewed can have a mean larger than a 1 sigma upper confidence limit. Even a half Gaussian has mean at the 60% limit.