是否有任何简单的工具/库可以帮助我轻松计算数据帧的sma(..)?
GLD SMA(5)
Date
2005-01-03 00:00:00+00:00 43.020000 Nan
2005-01-04 00:00:00+00:00 42.740002 Nan
2005-01-05 00:00:00+00:00 42.669998 Nan
2005-01-06 00:00:00+00:00 42.150002 Nan
2005-01-07 00:00:00+00:00 41.840000 ..
2005-01-10 00:00:00+00:00 41.950001 ..
2005-01-11 00:00:00+00:00 42.209999 ..
2005-01-12 00:00:00+00:00 42.599998 ..
2005-01-13 00:00:00+00:00 42.599998 ..
2005-01-14 00:00:00+00:00 42.320000 ..