[gmx-users] PCA projections using g_anaeig

James Starlight jmsstarlight at gmail.com
Wed Jan 28 15:24:09 CET 2015

Dear Gromacs users!

I'd like to ask about possibility to make projection of the MD trajectory
onto the subset of selected PC calculated by g-covar

e.g using

g_anaeig –v eigenvec.trr –s md.tpr –f md.xtc –first 1 –last 3  -2d

produce projection of the md.xtc onto the 1 and 2 components although 1-3
modes has been calculated. How it would be possible to make the same graph
using 1 and 3rd components instead?

Thanks for help,


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