You can get a reference to the data table created by the Make Into Data Table message, and then set the name of that data table.
dt =(Data Table("Big Class")<<
Contingency(
Y( :sex ),
X( :age ),
Contingency Table(
Count( 0 ),
Total %( 0 ),
Col %( 0 ),
Row %( 1 ),
Expected( 0 ),
Deviation( 0 ),
Cell Chi Square( 0 ),
Col Cum( 0 ),
Col Cum %( 0 ),
Row Cum( 0 ),
Row Cum %( 0 )
),
Mosaic Plot( 0 ),
Tests( 0 ),
Horizontal Mosaic( 1 )
)) << Make Into Data Table;
dt<<set name("Big Class Row%");
-Jeff
-Jeff