CHECKOUT 93ed9b27 v1.1.2.40 CLEAN: add check...

CHECKOUT 93ed9b27 v1.1.2.40 CLEAN: add check in TransfoParam_CemaNeige

R/TransfoParam_CemaNeige.R

 TransfoParam_CemaNeige <- function(ParamIn, Direction) {
   
-  NParam <- 2
-  Bool <- is.matrix(ParamIn)
-  
-  if (Bool == FALSE) {
-    ParamIn <- rbind(ParamIn)
+
+  NParam <- 2L
+  
+  
+  ## check_arguments
+  Bool <- is.vector(ParamIn)
+  if (Bool) {
+    ParamIn <- matrix(ParamIn, nrow = 1)
+    warning("'ParamIn' automatically convert to 'matrix'")
+  }  
+  if (!inherits(ParamIn, "matrix")) {
+    stop("'ParamIn' must be of class 'matrix'")
+  }
+  if (!inherits(Direction, "character") | length(Direction) != 1 | any(!Direction %in% c("RT", "TR"))) {
+    stop("'Direction' must be a character vector of length 1 equal to 'RT' or 'TR'")
   }
-  
   if (ncol(ParamIn) != NParam) {
-    stop(paste( "the CemaNeige module requires ", NParam, " parameters \n", sep = "" ))
-    return(NULL)
+    stop(sprintf( "the CemaNeige module requires %i parameters", NParam))
   }
   
+  
   if (Direction == "TR") {
     ParamOut <-  ParamIn
     ParamOut[, 1] <- (ParamIn[, 1] + 9.99) / 19.98 ### CemaNeige X1 (weighting coefficient for snow pack thermal state)
     ParamOut[, 2] <- exp(ParamIn[, 2]) / 200       ### CemaNeige X2 (degree-day melt coefficient)
   }
-  
   if (Direction == "RT") {
     ParamOut <-  ParamIn
     ParamOut[, 1] <-  ParamIn[, 1] * 19.98 - 9.99  ### CemaNeige X1 (weighting coefficient for snow pack thermal state)
     ParamOut[, 2] <- log(ParamIn[, 2] * 200)       ### CemaNeige X2 (degree-day melt coefficient)
   }
   
-  if (Bool == FALSE) {
-    ParamOut <- ParamOut[1, ]
+  if (Bool) {
+    ParamOut <- as.vector(ParamOut)
   }
   
   return(ParamOut)