Theory, computation, and validation of SPI and SPEI with hydroTSM

Authored by:Mauricio Zambrano-Bigiarini inhydroTSM 0.8-24.
Source:hydroTSM_SPI_SPEI_Vignette.Rmd, Vignette:hydroTSM_SPI_SPEI_Vignette.html. Last updated:2026-07-28.