当我想要策划一个时间表时，我遇到了一个奇怪的问题。这是我第一次遇到这种错误。
我可以打印时间表，但是当我想要绘制它时我有问题。
有人知道如何更正吗？
>>> df.head(35)
DATES
2015-01-01 0.002587
2015-01-02 0.003685
2015-01-03 0.003369
2015-01-04 0.002586
2015-01-05 0.002586
2015-01-06 0.002586
2015-01-07 0.003684
2015-01-08 0.003684
2015-01-09 0.003684
2015-01-10 0.003369
2015-01-11 0.002586
2015-01-12 0.003684
2015-01-13 0.003684
2015-01-14 0.003684
2015-01-15 0.003684
2015-01-16 0.003684
2015-01-17 0.003369
2015-01-18 0.002586
2015-01-19 0.003684
2015-01-20 0.003684
2015-01-21 0.003684
2015-01-22 0.003684
2015-01-23 0.003684
2015-01-24 0.003369
2015-01-25 0.002586
2015-01-26 0.003684
2015-01-27 0.003684
2015-01-28 0.003684
2015-01-29 0.003684
2015-01-30 0.003684
2015-01-31 0.003369
2015-02-01 0.002586
2015-02-02 0.003684
2015-02-03 0.003684
2015-02-04 0.003684
Freq: D, dtype: float64
>>> df.head(35).plot()
<matplotlib.axes.AxesSubplot object at 0x06F7E3D0>
>>> Traceback (most recent call last):
File "C:\Python27\lib\site-packages\matplotlib\backends\backend_qt4.py", line 374, in idle_draw
self.draw()
File "C:\Python27\lib\site-packages\matplotlib\backends\backend_qt4agg.py", line 148, in draw
FigureCanvasAgg.draw(self)
File "C:\Python27\lib\site-packages\matplotlib\backends\backend_agg.py", line 451, in draw
self.figure.draw(self.renderer)
File "C:\Python27\lib\site-packages\matplotlib\artist.py", line 54, in draw_wrapper
draw(artist, renderer, *args, **kwargs)
File "C:\Python27\lib\site-packages\matplotlib\figure.py", line 1034, in draw
func(*args)
File "C:\Python27\lib\site-packages\matplotlib\artist.py", line 54, in draw_wrapper
draw(artist, renderer, *args, **kwargs)
File "C:\Python27\lib\site-packages\matplotlib\axes.py", line 2086, in draw
a.draw(renderer)
File "C:\Python27\lib\site-packages\matplotlib\artist.py", line 54, in draw_wrapper
draw(artist, renderer, *args, **kwargs)
File "C:\Python27\lib\site-packages\matplotlib\axis.py", line 1087, in draw
ticks_to_draw = self._update_ticks(renderer)
File "C:\Python27\lib\site-packages\matplotlib\axis.py", line 945, in _update_ticks
tick_tups = [t for t in self.iter_ticks()]
File "C:\Python27\lib\site-packages\matplotlib\axis.py", line 893, in iter_ticks
for i, val in enumerate(majorLocs)]
File "C:\Python27\lib\site-packages\pandas\tseries\converter.py", line 973, in __call__
return Period(ordinal=int(x), freq=self.freq).strftime(fmt)
File "C:\Python27\lib\site-packages\pandas\tseries\period.py", line 427, in strftime
return tslib.period_format(self.ordinal, base, fmt)
File "tslib.pyx", line 2357, in pandas.tslib.period_format (pandas\tslib.c:34856)
File "tslib.pyx", line 2412, in pandas.tslib._period_strftime (pandas\tslib.c:35375)
File "C:\Python27\lib\encodings\utf_8.py", line 16, in decode
return codecs.utf_8_decode(input, errors, True)
UnicodeDecodeError: 'utf8' codec can't decode byte 0xe9 in position 3: invalid continuation byte
Traceback (most recent call last):
File "C:\Python27\lib\site-packages\matplotlib\backends\backend_qt4.py", line 299, in resizeEvent
self.draw()
File "C:\Python27\lib\site-packages\matplotlib\backends\backend_qt4agg.py", line 148, in draw
FigureCanvasAgg.draw(self)
File "C:\Python27\lib\site-packages\matplotlib\backends\backend_agg.py", line 451, in draw
self.figure.draw(self.renderer)
File "C:\Python27\lib\site-packages\matplotlib\artist.py", line 54, in draw_wrapper
draw(artist, renderer, *args, **kwargs)
File "C:\Python27\lib\site-packages\matplotlib\figure.py", line 1034, in draw
func(*args)
File "C:\Python27\lib\site-packages\matplotlib\artist.py", line 54, in draw_wrapper
draw(artist, renderer, *args, **kwargs)
File "C:\Python27\lib\site-packages\matplotlib\axes.py", line 2086, in draw
a.draw(renderer)
File "C:\Python27\lib\site-packages\matplotlib\artist.py", line 54, in draw_wrapper
draw(artist, renderer, *args, **kwargs)
File "C:\Python27\lib\site-packages\matplotlib\axis.py", line 1087, in draw
ticks_to_draw = self._update_ticks(renderer)
File "C:\Python27\lib\site-packages\matplotlib\axis.py", line 945, in _update_ticks
tick_tups = [t for t in self.iter_ticks()]
File "C:\Python27\lib\site-packages\matplotlib\axis.py", line 893, in iter_ticks
for i, val in enumerate(majorLocs)]
File "C:\Python27\lib\site-packages\pandas\tseries\converter.py", line 973, in __call__
return Period(ordinal=int(x), freq=self.freq).strftime(fmt)
File "C:\Python27\lib\site-packages\pandas\tseries\period.py", line 427, in strftime
return tslib.period_format(self.ordinal, base, fmt)
File "tslib.pyx", line 2357, in pandas.tslib.period_format (pandas\tslib.c:34856)
File "tslib.pyx", line 2412, in pandas.tslib._period_strftime (pandas\tslib.c:35375)
File "C:\Python27\lib\encodings\utf_8.py", line 16, in decode
return codecs.utf_8_decode(input, errors, True)
UnicodeDecodeError: 'utf8' codec can't decode byte 0xe9 in position 3: invalid continuation byte