Datasets                Data sets for illustrating the functions in the
                        SPEI package.
Drought-indices         Calculation of the Standardized
                        Precipitation-Evapotranspiration Index (SPEI)
                        and the Standardized Precipitation Index (SPI).
Generalized-Logistic    Generalized Logistic maximum likelihood
                        function
Generic-methods-for-spei-objects
                        Generic methods for 'spei' objects.
Kernel-functions        Time kernel for computing the SPEI at different
                        time scales.
Potential-evapotranspiration
                        Computation of potential and reference
                        evapotranspiration.
SPEI                    SPEI.
SPEINews                SPEINews
