import pandas

def read(filename):
    # Get time
    df = pandas.read_csv(filename)
    time = df['t (s)'].to_numpy()
    n = df['n_i (m^-3)'].to_numpy()
    u = df['u_i (m s^-1)'].to_numpy()
    T = df['T_i (eV)'].to_numpy()
    Zinj = df['Zinj'].to_numpy()
    Z_Tne = df['Z_Tne'].to_numpy()

    return time, n, u, T, Zinj, Z_Tne