airGR (version 1.0.15.2)

TransfoParam_GR4J: Transformation of the parameters of the GR4J model

Description

Function which transforms model parameters of the GR4J model (from real to transformed parameters and vice versa).

Usage

TransfoParam_GR4J(ParamIn, Direction)

Arguments

ParamIn

[numeric] matrix of parameter sets (sets in line, parameter values in column)

Direction

[character] direction of the transformation: use "RT" for Raw -> Transformed and "TR" for Transformed -> Raw

Value

ParamOut [numeric] matrix of parameter sets (sets in line, parameter values in column)

See Also

TransfoParam, TransfoParam_GR5J, TransfoParam_GR6J, TransfoParam_CemaNeige

Examples

# NOT RUN {
library(airGR)

## transformation Raw -> Transformed for the GR4J model
Xraw  <- matrix(c(+221.41, -3.63,  +30.00, +1.37,
                  +347.23, -1.03,  +60.34, +1.76,
                  +854.06, -0.10, +148.41, +2.34),
                  ncol = 4, byrow = TRUE)
Xtran <- TransfoParam_GR4J(ParamIn = Xraw , Direction = "RT")

## transformation Transformed -> Raw for the GR4J model
Xtran <- matrix(c(+3.60, -2.00, +3.40, -9.10,
                  +3.90, -0.90, +4.10, -8.70,
                  +4.50, -0.10, +5.00, -8.10),
                  ncol = 4, byrow = TRUE)
Xraw  <- TransfoParam_GR4J(ParamIn = Xtran, Direction = "TR")
# }