--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rDiff/src/locfit/m/lfmarg.m	Thu Feb 14 23:38:36 2013 -0500
@@ -0,0 +1,17 @@
+function xfit = lfmarg(fit)
+
+% computes grid margins from a locfit object, used for plotting.
+% this function is called from lfplot and lfband, will not normally
+% be called directly by users.
+
+box = fit.fit_points.fit_limits;
+d = size(box,1);
+xfit = cell(1,d);
+mg = 10*ones(1,d);
+if (d==1) mg = 200; end;
+if (d==2) mg = [51 50]; end;
+for i=1:d
+    xfit{i} = box(i,1) + (box(i,2)-box(i,1))*(0:mg(i))'/mg(i);
+end;
+
+return;