平滑滤波Pandas系列，带savitzky-golly滤波器

Question

我手头有一个系列s，我想使用Savitzky_Golay过滤器来平滑值

s
0          34.577132
1          34.696638
2           0.098759
3          34.339717
4          34.501700
             ...    
1918295     1.395713
1918296     0.013907

我也是

from scipy.signal import savgol_filter
s_smooth = savgol_filter(s, 5,2)

但随后一切都变成了NaN

s_smooth
array([nan, nan, nan, ..., nan, nan, nan])

我如何平滑这些数据