熊猫DataFrame（TypeError：空的'DataFrame'：没有要绘制的数字数据）

Question

I'm trying to learn how to use pandas and im trying to display a plot showing the total births by sex & year.

[1] [ http://i.stack.imgur.com/R7Vz7.png] (Cant figure out why there's another column called sex

but this image above the data im trying to plot

and keep getting TypeError: Empty 'DataFrame': no numeric data to plot)

This is what my code looks like

[2] http://i.stack.imgur.com/FbZmM.png

Answer 1

This is happening because during the pivot the dataFrame becomes multi-indexed. There are no columns with values to plot against eachother. You can use df.reset_index() to set the multiple indexes as columns, and then plot their values.