[gmx-users] the a.u. unit in the RMS distribution graph

[Justin Lemkul]

On 11/29/19 7:18 AM, Christian Blau wrote:
> Hello Lalehan,
>
>
> a.u. stands for "arbitrary units".
>
> The rmsd-dist contains a histogram over the distribution of rmsd 
> values, you can read the a.u. as counts per length-interval.
>

I would suggest that all histograms that GROMACS produces actually be 
labeled reasonably in the code - using a.u. is itself arbitrary because 
it has multiple possible meanings. If it's a raw histogram, we should be 
using "Frequency" and if normalized, "Probability."

-Justin

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Justin A. Lemkul, Ph.D.
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