Return the distances between given atoms.

Calculates the distance between the atoms with indices i and b. The indices can be given in three ways:

  • As simple list [i, b]
  • As list of lists: [[i1, b1], [i2, b2]...]
  • As pd.DataFrame where i is taken from the index and b from the respective column 'b'.
Parameters:indices (list) –
Returns:Vector of angles in degrees.
Return type:numpy.ndarray