[gmx-users] fixing molecules in normal mode?

[xzp02 at mails.tsinghua.edu.cn]

Dear All:
        How can I run nm analysis with some molecules with position fixed? Freeze
group does not work in my case. 
       Thanks a lot.

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Best,

Xu Zhiping 
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Ph.D Candicate
Department of Engineering Mechanics
Tsinghua University
Beijing, 100084, CHINA
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