R Graphical Manual

Last data update: 2014.03.03

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Drought Index from Parameters (Package: SPIGA) : Calculation of standardized precipitation index from alpha and beta parameter of the Gamma function.

calculate the standardized precipitation index, from alpha and beta parameter of the Gamma function.

● Data Source: CranContrib
● Keywords:
● Alias: SPIFromParameters
● 0 images

Drought Index (Package: SPIGA) : Calculation of Standardized Precipitation Index, using the Genetic Algorithm Method (SPIGA) and Maximum Likelihood (SPIML)

Calculate the standardized precipitation index (SPI) for monitoring drought using the technique of Genetic Algorithm (SPIGA) and Maximum Likelihood (SPIML) of a series of monthly rainfall for different time scales.

● Data Source: CranContrib
● Keywords:
● Alias: SPIGA, SPIML
● 0 images

SPIDataset (Package: SPIGA) : The data set for illustratrating the functions of the SPIGA package

The set used, data are monthly rainfall (1981-2015) and the dimensionless parameters to calculate the SPI drought.

● Data Source: CranContrib
● Keywords:
● Alias: Pm_Pisco, alphaGA_SPI3, betaGA_SPI3
● 0 images

Generic methods for spei objects (Package: SPIGA) : Generic methods for code{SPIGA

Generic methods for extracting information and plotting SPIGA objects.

● Data Source: CranContrib
● Keywords:
● Alias: alphaBetaMV, calcSPI, distEmpiric, fitnessGamma, matrizToSerie, plotSerieStandart, sumaMoviles, sumaMovilesSerie, testNS
● 0 images