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Biomolecular simulation trajectory/data analysis.

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I want to decompose the energies of a system by atom, but am puzzled by the outputs. I'm using commands of the form energy test1 @2 out test1.txt energy test2...

bug
Feature Request

Right now `multidihedral` requires all 4 atoms be bonded. Should there be a keyword (or on by default) that all atoms do not need to be bonded?

Feature Request

modXNA is a method for generating non-standard amino acid residues. It would be nice if `prepareforleap` could interface with this in some way. https://modxna.chpc.utah.edu/

enhancement
help wanted

Hi Users/Developers, I am having issues running PCA analysis with CPPTRAJ. It always stops showing the segmentation fault. I am only considering the CA atoms of protein and P atoms...

bug

@drroe This is actually my first attempt at a pull request that is based on a non-master branch. I'm assuming that accepting the request will create a `conda` branch at...

This would make it easier for cpptraj to be part of Amber Classic

Hi all, I am running GIST on some small molecules and the resulting maps for all the calculated quantities are shifted in space relative to the solute. I am getting...

6.29.8. Previously `atommap rmsfit` required a full atom mapping to work. This PR changes it so that only the mapped atoms are used in the rms fit. It also adds...

enhancement

The Amber24 Reference Manual describes MPI and OMP parallelization, but is not very clear about which executables do what. For example, if I configure (using the Makefile) with the -openmp...

The current release is more than 2 years ago and we have a lot of useful updates. Like running GIST in parallel. I think it would be good to do...