**From:** Giovanni Bellesia (*gbellesia_at_chem.ucsb.edu*)

**Date:** Wed Oct 07 2009 - 13:50:55 CDT

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Hi all,

I am trying to use formula (22) in JCP 121(7), 2004 to calculate the

error in my ABF data.

From the simulations, I have the distributions of the instantaneous

force for every bin.

Therefore, I am calculating sigma(F_{e,i}) fitting these distributions

with a Gaussian.

My problem is: I understand the definition of "sampling ratio" (1+2k)

but I don't know how to

calculate it since I don't have the values of the instantaneous force.

I think I'm missing something very simple here ... :o)

Giovanni

-- ------------------------------------------ Giovanni Bellesia Department of Chemistry and Biochemistry University of California, Santa Barbara Santa Barbara, California 93106-9510, USA. Email: gbellesia_at_chem.ucsb.edu Phone: 805 893 2767 Web: http://www.chem.ucsb.edu/~gbellesia/ ------------------------------------------

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