diff --git a/R/Param.R b/R/Param.R
deleted file mode 100644
index bcde3ab..0000000
--- a/R/Param.R
+++ /dev/null
@@ -1,52 +0,0 @@
-#' @title Class Param
-#'
-#' @description
-#' Implements a parameter set. Objects from this class contain non-tunable parameters.
-#'
-#' @export
-#' @importFrom R6 R6Class
-#' @seealso [ParamLrner]
-Param <- R6Class("Param",
-                     public = list(
-                      #' @description
-                      #' Initialize a default parameters list.
-                      #'
-                      #'
-                      #' @param id (`character(1)`)\cr
-                      #'  The ID of current parameter object.
-                      #' @param param_list (`list(1)`)\cr
-                      #'  List of parameters.
-                      #'
-                       initialize = function (id, param_list) {
-                         private$id = id
-                         private$param_list = param_list
-                       },
-                      #' @description
-                      #' Printer
-                      #' @param ... (any) \cr
-                      #'
-                       print = function(...){
-                         cat("Class: Param\n")
-                         cat(sprintf("id   : %s\n", private$id))
-                         cat("Parameter combination\n")
-                         print(private$param_list)
-                       },
-                      #' @description
-                      #' Getter of parameter ID.
-                      #'
-                      getId = function () {
-                        return(private$id)
-                      },
-                      #' @description
-                      #' Getter of parameter list.
-                      #'
-                      getParamList = function () {
-                        return(private$param_list)
-                      }
-                     ),
-                 private = list(
-                   id = character(0L),
-                   param_list = NA
-                 ),
-                 cloneable = TRUE
-)
diff --git a/R/ParamLrner.R b/R/ParamLrner.R
deleted file mode 100644
index 9305a0c..0000000
--- a/R/ParamLrner.R
+++ /dev/null
@@ -1,60 +0,0 @@
-#' @title Class ParamLrner.
-#'
-#' @description
-#' Implement the list of parameters to be passed to the [Lrner] object.
-#' Non-tunable parameters and tunable paramters are stored in the object
-#' from this class.
-#'
-#' @export
-#' @importFrom R6 R6Class
-ParamLrner <- R6Class("ParamLrner",
-                        inherit = Param,
-                        public = list(
-                          #' @description
-                          #' constructor
-                          #'
-                          #' @param id (`character(1)`)\cr
-                          #' See class Param
-                          #' @param param_list (`list(1)`)\cr
-                          #' See class Param
-                          #' @param hyperparam_list (`list(1)`)\cr
-                          #' List of hyperparameters. Default is an empty list.
-                          #'
-                          initialize = function (id,
-                                                param_list,
-                                                hyperparam_list = list()) {
-                            super$initialize(id = id, param_list = param_list)
-                            private$hyperparam = hyperparam_list
-                            param = c(private$param_list, hyperparam_list)
-                            private$param_lrner = expand.grid(param)
-                            # Do not hash instances from this class. Hash Lrner
-                            # objects instead.
-                          },
-                          #' @description
-                          #' Printer
-                          #' @param ... (any) \cr
-                          #'
-                          print = function (...) {
-                            cat(sprintf("ParamLrner   : %s\n", private$id))
-                            cat("Learner parameter combination\n")
-                            print(private$param_lrner)
-                          },
-                          #' @description
-                          #' Getter of learner parameters.
-                          #'
-                          getParamLrner = function() {
-                            return(private$param_lrner)
-                          },
-                          #' @description
-                          #' Getter of hyperparameters.
-                          #'
-                          getHyperparam = function () {
-                            return(private$hyperparam)
-                          }
-                        ),
-                        private = list(
-                          param_lrner = list(0L),
-                          hyperparam = list(0L)
-                        ),
-                        cloneable = TRUE
-)
diff --git a/R/ParamVarSel.R b/R/ParamVarSel.R
deleted file mode 100644
index 219ce19..0000000
--- a/R/ParamVarSel.R
+++ /dev/null
@@ -1,41 +0,0 @@
-#' @title Class ParamVarSel.
-#'
-#' @description
-#' Implement the list of parameters to be passed to the [VarSel] object.
-#'
-#' @export
-#' @importFrom R6 R6Class
-ParamVarSel <- R6Class("ParamVarSel",
-                      inherit = Param,
-                      public = list(
-                        #' @description
-                        #' constructor
-                        #'
-                        #' @param id (`character(1)`)\cr
-                        #' See class Param
-                        #' @param param_list (`list(1)`)\cr
-                        #' See class Param
-                        #'
-                        initialize = function (id,
-                                               param_list) {
-                          super$initialize(id = id, param_list = param_list)
-                        },
-                        #' @description
-                        #' Printer
-                        #' @param ... (any) \cr
-                        #'
-                        print = function(...){
-                          cat("Class: ParamVarSel\n")
-                          cat(sprintf("id   : %s\n", private$id))
-                          cat("Parameter combination\n")
-                          print(private$param_list)
-                        },
-                        #' @description
-                        #' Getter of learner parameters.
-                        #'
-                        getParamVarSel = function() {
-                          return(private$param_list)
-                        }
-                      ),
-                      cloneable = TRUE
-)