diff --git a/src/fitting/xyfit/xyfit.sl b/src/fitting/xyfit/xyfit.sl
index 9ab240f6dd09f3abe6b38cde2cbb88f7c8d6ddee..eebb00ff2829d8ff5dd10e32d9a70957716ddb06 100644
--- a/src/fitting/xyfit/xyfit.sl
+++ b/src/fitting/xyfit/xyfit.sl
@@ -754,6 +754,84 @@ define define_xydata()
 }
 %}}}
 
+%%%%%%%%%%%%%%%%
+define ignore_xy ()
+%%%%%%%%%%%%%%%%
+%!%+
+%\function{ignore_xy}
+%\synopsis{ignore points from xy-dataset}
+%c#%{{{
+%\usage{ignore_xy (index [, low, high]);}
+%\description
+%    Wraper function of the ignore function for datasets defined with
+%    define_xydata. Ignores data points of dataset \code{index}
+%    (in the range low to high) for fitting.
+%\seealso{notice_xy, ignore, ignore_en, define_xydata}
+%!%-
+{
+  variable id, lo=NULL, hi;
+  switch (_NARGS)
+  { case 1: id = ();               }
+  { case 3: (id, lo, hi) = ();     }
+  { return help(_function_name()); }
+
+  variable i,n,nlist, md;
+  _for i (0, length(id)-1, 1) {
+    if (_isnull(lo)) {
+      ignore(id[i]);
+    } else {
+      md = get_dataset_metadata(id[i]);
+      if (typeof(md) != Struct_Type) {
+	vmessage("No metadata associated with dataset %d, have you defined it via 'define_xydata'?", id[i]);
+	return;
+      }
+      variable xn = get_data_info(id[i]).notice;
+      n = (md.xy_data.x>=lo and md.xy_data.x<=hi);
+      _isis->_set_notice_using_mask(int((xn-n)>0), id[i]);
+    }
+  }
+}
+%}}}
+
+%%%%%%%%%%%%%%%%
+define notice_xy ()
+%%%%%%%%%%%%%%%%
+%!%+
+%\function{notice_xy}
+%\synopsis{notice points from xy-dataset}
+%#c%{{{
+%\usage{notice_xy (index [, low, high]);}
+%\description
+%    Wraper function of the notice function for datasets defined with
+%    define_xydata. Include data points of dataset \code{index}
+%    (in the range low to high) for fitting.
+%\seealso{ignore_xy, notice, notice_en, define_xydata}
+%!%-
+{
+  variable id, lo=NULL, hi;
+  switch (_NARGS)
+  { case 1: id = ();               }
+  { case 3: (id, lo, hi) = ();     }
+  { return help(_function_name()); }
+
+  variable i,n,nlist, md;
+  _for i (0, length(id)-1, 1) {
+    if (_isnull(lo)) {
+      notice(id[i]);
+    } else {
+      md = get_dataset_metadata(id[i]);
+      if (typeof(md) != Struct_Type) {
+	vmessage("No metadata associated with dataset %d, have you defined it via 'define_xydata'?", id[i]);
+	return;
+      }
+      variable xn = get_data_info(id[i]).notice;
+      n = (md.xy_data.x>=lo and md.xy_data.x<=hi);
+      _isis->_set_notice_using_mask(int((n+xn)>0), id[i]);
+    }
+  }
+}
+%}}}
+
 private define get_xyfit_metadata(data_id) %{{{
 {
   variable md = get_dataset_metadata(data_id);