ZDISTANCES
This is part of the multicolvar module

Calculate the z components of the vectors connecting one or many pairs of atoms. You can then calculate functions of the distribution of values such as the minimum, the number less than a certain quantity and so on.

Examples

The following input tells plumed to calculate the z-component of the vector connecting atom 3 to atom 5 and the z-component of the vector connecting atom 1 to atom 2. The minimum of these two quantities is then printed

Click on the labels of the actions for more information on what each action computes
tested on master