ClimInd (version 0.1-2)

spei12: Standardised Precipitation-Evapotranspiration Index 12

Description

Standardized precipitation-evapotranspiration index calculated at 12-month time scale

Usage

spei12(eto, pr, data_names = NULL, na.rm = FALSE, ...)

Arguments

eto

et0

pr

precipitation

data_names

names of each period of time

na.rm

logical. Should missing values (including NaN) be removed?

...

...

Value

SPEI

References

Vicente-Serrano, S. M., Beguer<U+00ED>a, S. and L<U+00F3>pez-Moreno, J. I.: A multiscalar drought index sensitive to global warming: The standardized precipitation evapotranspiration index, J. Clim., 23(7), doi:10.1175/2009JCLI2909.1, 2010.

Examples

# NOT RUN {
data(data_all)
spei12(eto = data_all$evapotranspiration, pr = data_all$rr)
# }