rename pkg --> aggexp

[aggexp.git] / pkg / R / m_RegressionTree.R

diff --git a/pkg/R/m_RegressionTree.R b/pkg/R/m_RegressionTree.R
deleted file mode 100644 (file)
index d51e408..0000000
--- a/pkg/R/m_RegressionTree.R
+++ /dev/null
@@ -1,36 +0,0 @@
-#' @include b_Algorithm.R
-
-#' @title Regression Tree
-#'
-#' @description Regression Tree using the \code{tree} package.
-#' Inherits \code{\link{Algorithm}}
-#'
-#' @field nleaf Number of leaf nodes after pruning. Default: Inf (no pruning)
-#'
-RegressionTree = setRefClass(
-       Class = "RegressionTree",
-
-       fields = c(
-               nleaf = "numeric"
-       ),
-
-       contains = "Algorithm",
-
-       methods = list(
-               initialize = function(...)
-               {
-                       callSuper(...)
-                       if (length(nleaf) == 0 || nleaf < 1)
-                               nleaf <<- Inf
-               },
-               predict_noNA = function(XY, x)
-               {
-                       require(tree, quietly=TRUE)
-                       rt = tree(Measure ~ ., data=XY)
-                       treeSize = sum( rt$frame[["var"]] == "<leaf>" )
-                       if (treeSize > nleaf)
-                               rt = prune.tree(rt, best = nleaf)
-                       return (stats::predict(rt, as.data.frame(x)))
-               }
-       )
-)