Utils.R 4.29 KB
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## =================================================================================
## function to check
## =================================================================================

# .onLoad <- function(libname, pkgname){
#   if (requireNamespace("airGRteaching", quietly = TRUE)) {
#     if (packageVersion("airGRteaching") %in% package_version(c("0.2.0.9", "0.2.2.2", "0.2.3.2"))) {
#       packageStartupMessage("In order to be compatible with the present version of 'airGR', please update your version of the 'airGRteaching' package.")
#     }
#   }
# }

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## =================================================================================
## function to manage Fortran outputs
## =================================================================================

.FortranOutputs <- function(GR = NULL, isCN = FALSE) {
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  outGR <- NULL
  outCN <- NULL
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  if (is.null(GR)) {
    GR <- ""
  }
  if (GR == "GR1A") {
    outGR <- c("PotEvap", "Precip",
               "Qsim")
  } else if (GR == "GR2M") {
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    outGR <- c("PotEvap", "Precip", "Prod", "Pn", "Ps",
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               "AE",
               "Perc", "PR",
               "Rout", "Exch",
               "Qsim")
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  } else if (GR == "GR5H") {
    outGR <- c("PotEvap", "Precip", "Interc", "Prod", "Pn", "Ps",
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               "AE", "EI", "ES",
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               "Perc", "PR",
               "Q9", "Q1",
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               "Rout", "Exch",
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               "AExch1", "AExch2",
               "AExch", "QR",
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               "QD",
               "Qsim")
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  } else if (GR %in% c("GR4J", "GR5J", "GR4H")) {
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    outGR <- c("PotEvap", "Precip", "Prod", "Pn", "Ps",
               "AE",
               "Perc", "PR",
               "Q9", "Q1",
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               "Rout", "Exch",
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               "AExch1", "AExch2",
               "AExch", "QR",
               "QD",
               "Qsim")
  } else if (GR == "GR6J") {
    outGR <- c("PotEvap", "Precip", "Prod", "Pn", "Ps",
               "AE",
               "Perc", "PR",
               "Q9", "Q1",
               "Rout", "Exch",
               "AExch1", "AExch2",
               "AExch", "QR",
               "QRExp", "Exp",
               "QD",
               "Qsim")
  }
  if (isCN) {
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    outCN <- c("Pliq", "Psol",
               "SnowPack", "ThermalState", "Gratio",
               "PotMelt", "Melt", "PliqAndMelt", "Temp",
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               "Gthreshold", "Glocalmax")
  }
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  res <- list(GR = outGR, CN = outCN)
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}
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## =================================================================================
## functions to extract parts of InputsModel or OutputsModel objects
## =================================================================================

## InputsModel

.ExtractInputsModel <- function(x, i) {
  res <- lapply(x, function(x) {
    if (is.matrix(x)) {
      res0 <- x[i, ]
    }
    if (is.vector(x) | inherits(x, "POSIXt")) {
      res0 <- x[i]
    }
    if (is.list(x) & !inherits(x, "POSIXt")) {
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      if (inherits(x, "OutputsModel")) {
        res0 <- .ExtractOutputsModel(x = x, i = i)
      } else {
        res0 <- .ExtractInputsModel(x = x, i = i)
      }
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    }
    return(res0)
  })
  if (!is.null(x$ZLayers)) {
    res$ZLayers <- x$ZLayers
  }
  class(res) <- class(x)
  res
}

'[.InputsModel' <- function(x, i) {
  if (!inherits(x, "InputsModel")) {
    stop("'x' must be of class 'InputsModel'")
  }
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  if (is.factor(i)) {
    i <- as.character(i)
  }
  if (is.numeric(i)) {
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    .ExtractInputsModel(x, i)
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  } else {
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    NextMethod()
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  }
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}


## InputsModel

.ExtractOutputsModel <- function(x, i) {
  IsStateEnd <- !is.null(x$StateEnd)
  if (IsStateEnd) {
    IsStateEnd <- TRUE
    StateEnd <- x$StateEnd
    x$StateEnd <- NULL
  }
  res <- lapply(x, function(x) {
    if (is.matrix(x)  && length(dim(x)) == 2L) {
      res0 <- x[i, ]
    }
    if (is.array(x) && length(dim(x)) == 3L) {
      res0 <- x[i, , ]
    }
    if (is.vector(x) | inherits(x, "POSIXt")) {
      res0 <- x[i]
    }
    if (is.list(x) & !inherits(x, "POSIXt")) {
      res0 <- .ExtractOutputsModel(x = x, i = i)
    }
    return(res0)
  })
  if (IsStateEnd) {
    res$StateEnd <- StateEnd
  }
  class(res) <- class(x)
  res
}

'[.OutputsModel' <- function(x, i) {
  if (!inherits(x, "OutputsModel")) {
    stop("'x' must be of class 'OutputsModel'")
  }
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  if (is.factor(i)) {
    i <- as.character(i)
  }
  if (is.numeric(i)) {
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    .ExtractOutputsModel(x, i)
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  } else {
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    NextMethod()
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  }
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}