Dear Gromacs users, I am doing MD simulation of DNA oligomers and need to calculate their persistence length. Using g_polystat with -p persist.xvg I discovered that the output file contains a lot of "nan" values among other values of numbers of bonds. As far as I understood reading this forum, there were other people who also had nan-problems using g_polystat. Is there a bug in g_polystat function or I am doing something wrong? I am using "DNA" index group that I believe is appropriate for calculation of DNA backbone persistence length. Thank you!
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