diff --git a/src/param/param-values.ts b/src/param/param-values.ts
index 8bb1782ada624c7ea6e6ae600c8aa11bd3dcfb5f..3793c823327e4d88396f1afce8de97590e1f546f 100644
--- a/src/param/param-values.ts
+++ b/src/param/param-values.ts
@@ -376,17 +376,4 @@ export class ParamValues {
         this._singleValue.value = this._iterator.next().value;
         return this._singleValue.value;
     }
-
-    /**
-     * copie des membres
-     */
-    public copyMembers(n: ParamValues) {
-        n._valueMode = this._valueMode;
-        n._singleValue = new DefinedNumber(this._singleValue.value);
-        n._minValue = this._minValue;
-        n._maxValue = this._maxValue;
-        n._stepValue = this._stepValue;
-        if (this._valueList != undefined)
-            n._valueList = this._valueList.slice(0); // copie
-    }
 }