xarray.core.rolling_exp.RollingExp.sum#
- RollingExp.sum(keep_attrs=None)[source]#
Exponentially weighted moving sum.
- Parameters
keep_attrs (
bool
, default:None
) – If True, the attributes (attrs
) will be copied from the original object to the new one. If False, the new object will be returned without attributes. If None uses the global default.
Examples
>>> da = xr.DataArray([1, 1, 2, 2, 2], dims="x") >>> da.rolling_exp(x=2, window_type="span").sum() <xarray.DataArray (x: 5)> Size: 40B array([1. , 1.33333333, 2.44444444, 2.81481481, 2.9382716 ]) Dimensions without coordinates: x