Calculation of the Standardized Precipitation-Evapotranspiration Index
Data sets for illustrating the functions in the SPEI package.
Calculation of the Standardized Precipitation-Evapotranspiration Index...
Generalized Logistic maximum likelihood function
Generic methods for spei objects.
Time kernel for computing the SPEI at different time scales.
Computation of potential and reference evapotranspiration.
SPEI.
SPEINews
A set of functions for computing potential evapotranspiration and several widely used drought indices including the Standardized Precipitation-Evapotranspiration Index (SPEI).
Useful links