问题描述
我正在使用zip来比较两个系列Max_Plot2015_serie,Max_Plot2005_2014_serie,并将两者的最大值返回到新系列Max_scatter2015 ['Temp_Celcius']。 如何导入相应值的索引(索引是日期)? 我是Python的新手,对功能的掌握不够
Max_scatter2015['Temp_Celcius'] = [max(value) for value in zip(Max_Plot2015_serie,Max_Plot2005_2014_serie)]
Max_Plot2005_2014_serie
2014-12-25 10.0
2014-12-26 10.0
2014-12-27 11.1
2014-12-28 13.3
2014-12-30 3.3
2014-12-31 -2.8
Name: Temp_Celcius,dtype: float64
<class 'pandas.core.series.Series'>
Max_Plot2015_serie
2015-10-02 18.9
2015-03-10 9.4
2015-02-23 -1.1
2015-06-09 25.6
Name: Temp_Celcius,dtype: float64
<class 'pandas.core.series.Series'>
Max_scatter2015
Temp_Celcius [18.9,13.9,26.1,23.3,6.7,18.3,27.8,7.2,...
dtype: object
<class 'pandas.core.series.Series'>
解决方法
也许这就是您想要的:
xhr.send( ( s.hasContent && s.data ) || null );
,
IIUC,您可以尝试执行以下操作:
s_2014 = pd.Series(np.random.randint(0,120,365),index=pd.date_range('2014-01-01',periods=365,freq='D'))
s_2015 = pd.Series(np.random.randint(0,135,index=pd.date_range('2015-01-01',freq='D'))
按天查找最大值:
m = [max(i,j,key=lambda x: x[1]) for i,j in zip(s_2014.iteritems(),s_2015.iteritems())]
j,i = zip(*m)
s = pd.Series(i,index=j)
s
输出:
2015-01-01 104
2014-01-02 101
2014-01-03 118
2014-01-04 26
2015-01-05 98
...
2015-12-27 132
2014-12-28 58
2015-12-29 110
2015-12-30 115
2015-12-31 35
Length: 365,dtype: int64
仅更新至2015年数据:
s[s.index.year == 2015]
输出:
2015-01-01 60
2015-01-03 109
2015-01-06 71
2015-01-07 113
2015-01-09 9
...
2015-12-16 90
2015-12-23 98
2015-12-26 132
2015-12-27 107
2015-12-29 65
Length: 204,dtype: int64