--- loncom/interface/Attic/lonspreadsheet.pm	2002/08/28 19:50:29	1.102
+++ loncom/interface/Attic/lonspreadsheet.pm	2002/08/29 15:35:01	1.103
@@ -1,5 +1,5 @@
 #
-# $Id: lonspreadsheet.pm,v 1.102 2002/08/28 19:50:29 matthew Exp $
+# $Id: lonspreadsheet.pm,v 1.103 2002/08/29 15:35:01 matthew Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -721,6 +721,53 @@ sub SUMMIN {
     return $sum;   
 }
 
+#-------------------------------------------------------
+
+=item MINPARM(parametername)
+
+Returns the minimum value of the parameters matching the parametername.
+parametername should be a string such as 'duedate'.
+
+=cut
+
+#-------------------------------------------------------
+sub MINPARM {
+    my ($expression) = @_;
+    my $min = undef;
+    study($expression);
+    foreach $parameter (keys(%c)) {
+        next if ($parameter !~ /$expression/);
+        if ((! defined($min)) || ($min > $c{$parameter})) {
+            $min = $c{$parameter} 
+        }
+    }
+    return $min;
+}
+
+#-------------------------------------------------------
+
+=item MAXPARM(parametername)
+
+Returns the maximum value of the parameters matching the input parameter name.
+parametername should be a string such as 'duedate'.
+
+=cut
+
+#-------------------------------------------------------
+sub MAXPARM {
+    my ($expression) = @_;
+    my $max = undef;
+    study($expression);
+    foreach $parameter (keys(%c)) {
+        next if ($parameter !~ /$expression/);
+        if ((! defined($min)) || ($max < $c{$parameter})) {
+            $max = $c{$parameter} 
+        }
+    }
+    return $max;
+}
+
+#--------------------------------------------------------
 sub expandnamed {
     my $expression=shift;
     if ($expression=~/^\&/) {