print(frame['height'].resample('M', kind='period').mean())写成分组的方法中,错误的是:
A: print(frame['height'].groupby(frame.index.dt.month).mean())
B: print(frame['height'].groupby(frame.index.month).mean())
C: print(frame['height'].groupby(frame.index.to_period(freq='M')).mean())
D: print(frame.groupby(frame.index.to_period(freq='M'))['height'].mean())
A: print(frame['height'].groupby(frame.index.dt.month).mean())
B: print(frame['height'].groupby(frame.index.month).mean())
C: print(frame['height'].groupby(frame.index.to_period(freq='M')).mean())
D: print(frame.groupby(frame.index.to_period(freq='M'))['height'].mean())
举一反三
- print(frame['height'].resample('M', kind='period').mean())写成分组的方法中,错误的是: A: print(frame['height'].groupby(frame.index.dt.month).mean()) B: print(frame['height'].groupby(frame.index.month).mean()) C: print(frame['height'].groupby(frame.index.to_period(freq='M')).mean()) D: print(frame.groupby(frame.index.to_period(freq='M'))['height'].mean())
- values = ['2019Q4']frame = pd.DataFrame(data, pd.PeriodIndex(values, freq='M'))print(frame)输出的时间索引值是: A: 2019-10 B: 2019-12-31 C: 2019-12 D: 2019-10-1
- 以下程序的输出结果是: frame = [[1,2,3],[4,5,6],[7,8,9]] rgb = frame[::-1] print(rgb)
- An animation of a small ball falling, we will record the beginning and end of the ball movement as____. A: key frame B: subdivision frame C: transition frame D: intermediate frame
- Panel组件需要通过Frame的add方法添加到Frame中。