Autocorrelation function of Rg goes down without fluctuation around zero

From: faride badalkhani (
Date: Thu Aug 18 2016 - 04:21:07 CDT

Dear NAMD users,

I have plotted the autocorrelation function of radius of gyration as a
function of time to investigate the equilibration of a system of
hyperbranched polymer. However, the plot goes down and does not fluctuate
around zero.

Could anybody tell me what is the reason and what should I do?
Any help will be appreciated.


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