Here is a simple script that will convert the columns found to have numeric values
Names Default To Here( 1 );
dt = Current Data Table();
colNames = dt << get column names( string, character );
For( i = 1, i <= N Items( colNames ), i++,
If( Is Missing( Num( Column( dt, colNames[i] )[1] ) ) == 0,
Column( dt, colNames[i] ) << data type( numeric ) << modeling type( continuous )
)
);
It looks like you need to take the time to read through the Scripting Guide
Help==>Books==>Scripting Guide
Jim