python - pandas DataFrame "no numeric data to plot" error

Question

I have a small DataFrame that I want to plot using pandas.

    2   3
0   1300    1000
1   242751149   199446827
2   237712649   194704827
3   16.2    23.0

I am still trying to learn plotting from within pandas . I want a plot In the above example when I say .

df.plot()

I get the strangest error.

Library/Python/2.7/site-packages/pandas-0.16.2-py2.7-macosx-10.10-intel.egg/pandas/tools/plotting.pyc in _compute_plot_data(self)
   1015         if is_empty:
   1016             raise TypeError('Empty {0!r}: no numeric data to '
-> 1017                             'plot'.format(numeric_data.__class__.__name__))
   1018 
   1019         self.data = numeric_data

TypeError: Empty 'DataFrame': no numeric data to plot

While I understand that the DataFrame with its very lopsided values makes a very un-interesting plot. I am wondering why the error message complains of no numeric data to plot.

Answer 1

Try the following before plotting:

df=df.astype(float)