Return the angles between given atoms.

Calculates the angle in degrees between the atoms with indices i, b, a. The indices can be given in three ways:

  • As simple list [i, b, a]
  • As list of lists: [[i1, b1, a1], [i2, b2, a2]...]
  • As pd.DataFrame where i is taken from the index and b and a from the respective columns 'b' and 'a'.
Parameters:indices (list) –
Returns:Vector of angles in degrees.
Return type:numpy.ndarray