In [18]: from pandas import DataFrame
In [19]: from numpy.random import randn
In [20]: df = DataFrame(randn(10, 2))
In [21]: df2 = DataFrame(randn(10, 2))
In [22]: axs = df.hist()
In [23]: for ax, (colname, values) in zip(axs.flat, df2.iteritems()):
....: values.hist(ax=ax, bins=10)
....:
In [24]: draw()
给
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清零编程群