def get_xyzr_t(df, particle_ind):
ind = df['<STR_LIT>'] == particle_ind<EOL>rads = np.array(df['<STR_LIT>'][ind].copy())<EOL>z = np.array(df['<STR_LIT:z>'][ind].copy())<EOL>x = np.array(df['<STR_LIT:x>'][ind].copy())<EOL>y = np.array(df['<STR_LIT:y>'][ind].copy())<EOL>return x,y,z,rads<EOL>
Returns the x,y,z, radii values of a dataframe for a given particle index.

Parameters
----------
    df : DataFrame
    particle_ind : Int
Returns
-------
    x, y, z, rads : numpy.ndarray