[gmx-users] RE: average pressure of a system

[Tsjerk Wassenaar]

Hi Dallas, Justin, e.a.,

As has been mentioned a number of times 0.9 +- 190 and 2.3 +- 190 are not
> statistically different.
>

This is not true. Whether this is statistically different depends on the
number of independent samples. For pressure, the fluctuations are wild, and
the autocorrelation is low, so for a reasonable length simulation you'll be
able to get sufficient samples to mark a small difference like that as
statistically significant. Whether it is physically significant is quite a
different matter.

Cheers,

Tsjerk