spi3: Standardized precipitation index 3

In ClimInd: Climate Indices

Description

Standardized precipitation index calculated at 3-month time scale

Usage

spi3(data, data_names = NULL, na.rm = FALSE, ...)

Arguments

data	daily precipitation, mm
data_names	names of each period of time
na.rm	logical. Should missing values (including NaN) be removed?
...	further arguments passed to or from other methods

Value

index value

References

McKee, T. B., Doesken, N. J. and Kleist, J.: The relationship of drought frequency and duration to time scales, Eighth Conf. Appl. Climatol., 179–184, 1993.

Examples

data(data_all)
spi3(data = data_all$rr)

ClimInd documentation built on April 10, 2021, 1:06 a.m.