No NULL Value Replacement
call td_analyze ( 'vartran', 'database = val_source; tablename = customer; zscore = columns (age, income/inc), datatype (integer);' );
NULL Value Replacement
keycolumns is required.
call td_analyze ( 'vartran', 'database = val_source; tablename = customer; keycolumns = cust_id; zscore = nullstyle (literal, 0), columns (age, income);' );