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Re: [Question #265521]: What's the most efficient way to get the average stress at each cycle?

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From: Bruno Chareyre <question265521@xxxxxxxxxxxxxxxxxxxxx>
Date: Mon, 20 Apr 2015 16:26:39 -0000
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Question #265521 on Yade changed:
https://answers.launchpad.net/yade/+question/265521

    Status: Open => Answered

Bruno Chareyre proposed the following answer:
Hi

This:
"for i in a:  sums+=bodyStressTensors()[i][2][2]"

is computing the stress for all bodies for all bodies (yes: nested "for
all").

This would make more sense:
stress=bodyStressTensors()
for i in a:  sums+=stress[i][2][2]

However, I don't see how this is supposed to solve your noise problem.
I would simply record the total force on the box (not bodyStress of the box, it is probably a junk value).
If it is also noisy then you will have to understand why.

Bruno

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