Series.hist()

by : object, optional

If passed, then used to form histograms for separate groups

ax : matplotlib axis object

If not passed, uses gca()

grid : boolean, default True

Whether to show axis grid lines

xlabelsize : int, default None

If specified changes the x-axis label size

xrot : float, default None

rotation of x axis labels

ylabelsize : int, default None

If specified changes the y-axis label size

yrot : float, default None

rotation of y axis labels

figsize : tuple, default None

figure size in inches by default

bins: integer, default 10

Number of histogram bins to be used

kwds : keywords

To be passed to the actual plotting function