spi {precintcon} | R Documentation |
Calculates the Standardized Precipitation Index (SPI) on a daily or monthly precipitation serie.
spi(object, period = 3, distribution = "Gamma")
object |
a daily or monthly precipitation serie. |
period |
the number of months to be aggregated in the calculation of the standardized precipitation index. (Default value: 3) |
distribution |
it has no effect yet. (Default value: "Gamma") |
A data.frame (precintcon.spi) containing the following variables:
year
is the year.
month
is the month.
spi
is the standardized precipitation index.
Lucas Venezian Povoa lucasvenez@gmail.com
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# Loading the monthly precipitation serie.
data(monthly)
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# Performing the Standardized Precipitation Index
spi(monthly, period = 3)