Legend only shows one label when plotting with pandas

Question

I have two Pandas DataFrames that I\'m hoping to plot in single figure. I\'m using IPython notebook.

I would like the legend to show the label for both of the DataFr

Answer 1

When multiple series are plotted then the legend is not displayed by default.
The easy way to display custom legends is just to use the axis from the last plotted series / dataframes (my code from IPython Notebook):

%matplotlib inline  # Embed the plot
import matplotlib.pyplot as plt

...
rates[rates.MovieID <= 25].groupby('MovieID').Rating.count().plot()  # blue
(rates[rates.MovieID <= 25].groupby('MovieID').Rating.median() * 1000).plot()  # green
(rates[rates.MovieID <= 25][rates.RateDelta <= 10].groupby('MovieID').Rating.count() * 2000).plot()  # red
ax = (rates[rates.MovieID <= 25][rates.RateDelta <= 10].groupby('MovieID').Rating.median() * 1000).plot()  # cyan

ax.legend(['Popularity', 'RateMedian', 'FirstPpl', 'FirstRM'])