我知道这里有很多关于熊猫滚动平均函数的问题,但是我不能让它发挥作用。在
我是Python的新手,还有numpy、pandas等包
我有一个日期时间对象列表和一个简单整数列表。绘制它们没有问题。但我不能在图上画出移动平均线!在
我试图用Pandas docs来理解它,但是我还是不能让它起作用。这就是我所尝试的:
# code before this simply reads a file and converts dates into datetime objects and values into a list
x1 = date_object #list of datetime objects
y1 = values1 #list of integer values
plot(x1,y1) # works fine
t = pd.date_range(date_object[0].strftime('%m/%d/%Y'), date_object[len(date_object)-1].strftime('%m/%d/%Y'), freq='W')
ts = pd.Series(y1, t)
ts_movavg = pd.rolling_mean(ts,10)
plot(ts_movavg)
…我得到以下错误:
^{pr2}$你很快就会知道,我很困惑。我想我错过了系列对象的重点。在
编辑:(完全回溯)
ValueError Traceback (most recent call last)
<ipython-input-228-2247062d3126> in <module>()
33 ts = pd.Series(y1, x1)
34
---> 35 ts_movavg = PD.rolling_mean(ts,10)
36
37 ts_movavg.head()
C:\Users\****\Anaconda\lib\site-packages\pandas\stats\moments.py in f(arg, window, min_periods, freq, center, time_rule, **kwargs)
507 return _rolling_moment(arg, window, call_cython, min_periods,
508 freq=freq, center=center,
--> 509 time_rule=time_rule, **kwargs)
510
511 return f
C:\Users\****\Anaconda\lib\site-packages\pandas\stats\moments.py in _rolling_moment(arg, window, func, minp, axis, freq, center, time_rule, **kwargs)
278 arg = _conv_timerule(arg, freq, time_rule)
279 calc = lambda x: func(x, window, minp=minp, **kwargs)
--> 280 return_hook, values = _process_data_structure(arg)
281 # actually calculate the moment. Faster way to do this?
282 if values.ndim > 1:
C:\Users\****\Anaconda\lib\site-packages\pandas\stats\moments.py in _process_data_structure(arg, kill_inf)
326
327 if not issubclass(values.dtype.type, float):
--> 328 values = values.astype(float)
329
330 if kill_inf:
ValueError: setting an array element with a sequence.
有人能告诉我如何用滚动平均函数画出移动平均线吗?在
目前没有回答
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