Plotting data with datetimes

[StephanieWillis]

The plotting library doesn't seem to work when I try and plot a datetime object. It can handle just dates but when there is an associated time the plot builds without error but no line is plotted.

Code here that doesn't work:

import pandas as pd
import matplotlib.pyplot as plt
import pdvega

rng = pd.date_range('1/1/2011', periods=72, freq='H')
rng = [pd.Timestamp(r) for r in rng]
ts = pd.Series(np.random.randn(len(rng)), index=rng)

ts.vgplot.line() #this doesn't throw any errors but no data is shown

ts.plot() #this works on the other hand
plt.show()

[jakevdp]

Thanks – I think this has to do with the way temporal data is serialized to JSON.