varweighted_mean_period¶

climpred.stats.varweighted_mean_period(ds, time_dim='time')[source]¶

Calculate the variance weighted mean period of time series.

$P_{x} = \frac{\sum_k V(f_k,x)}{\sum_k f_k \cdot V(f_k,x)}$

Parameters:	ds (xarray object) – Time series. time_dim (optional str) – Name of time dimension.

Reference:

Branstator, Grant, and Haiyan Teng. “Two Limits of Initial-Value Decadal Predictability in a CGCM.” Journal of Climate 23, no. 23 (August 27, 2010): 6292-6311. https://doi.org/10/bwq92h.