Start with dataframe of form
>>> df
first bar baz foo
second one two one two one two
1 0.085930 -0.848468 0.911572 -0.705026 -1.284458 -0.602760
2 0.385054 2.539314 0.589164 0.765126 0.210199 -0.481789
3 -0.352475 -0.975200 -0.403591 0.975707 0.533924 -0.195430
Select and plot 'one'
column
>>> one = df.xs('one', level=1, axis=1)
>>> one
first bar baz foo
1 0.085930 0.911572 -1.284458
2 0.385054 0.589164 0.210199
3 -0.352475 -0.403591 0.533924
>>> pyplot.show(one.plot())