ipython浮动滑块与Pandas日期时间系列？

Question

我试图做一个互动图表与滑块控制日期和时间 所以我试着这么做

from ipywidgets import widgets, FloatSlider
import pandas as pd
from matplotlib import pyplot as plt

DateList = ['2013-01-01', '2013-01-02', '2013-01-03']
ts = pd.to_datetime(pd.Series(DateList))

Slider = FloatSlider(min=min(ts), max=max(ts), step=1, 
                 value=pd.Timestamp('2013-01-01'))

但这不管用？ 我该怎么做？在