make unique a proper S4 method

ncss-tech · Jun 14, 2020 · 291438e · 291438e
1 parent 76e0276
commit 291438e
Showing 1 changed file with 4 additions and 7 deletions.
diff --git a/R/SoilProfileCollection-methods.R b/R/SoilProfileCollection-methods.R
@@ -552,8 +552,9 @@ setMethod(
   }
 )
 
-# overload unique() via digest eval of unique profiles
-uniqueSPC <- function(x, vars) {
+setMethod(f = 'unique',
+          signature(x = "SoilProfileCollection"),
+          definition = function(x, vars) {
   # compute hash by profile, for selected variables
   md5 <- profileApply(x, function(i) {
     # unlist in order to drop row names
@@ -575,11 +576,7 @@ uniqueSPC <- function(x, vars) {
   # return an index of unique profiles
   # down-grade to un-named vector of indices
   return(as.vector(u.profiles))
-}
-
-setMethod(f = 'unique',
-          signature(x = "SoilProfileCollection"),
-          definition = uniqueSPC)
+})
 
 ## standard column access: search horizons, then site
 setMethod("$", signature(x = "SoilProfileCollection"),