list.
-data list free/A B C D.
+data list free skip=1/A B C D.
begin data.
+# This record is ignored.
,1,2,3
,4,,5
6
end data.
list.
-data list free (tab)/A B C D.
+data list free (tab) skip=2/A B C D.
begin data.
+# These records
+# are skipped.
1 2 3 4
1 2 3
1 2 4