TD_GOLDFELD_QUANDT ( SERIES_SPEC , FUNC_PARAMS ( ORIG_REGR_PARAMCNT ( integer ) , [ START_IDX ( float ) , ] OMIT ( float ) , SIGNIFICANCE_LEVEL ( float ) , [ TEST ( { “GREATER” | “LESS” | “TWOSIDED” } ) ,] [ {FORMULA ( float ) , ALGORITHM ( float )} || {FORMULA ( float ) , ALGORITHM ( float ), WEIGHTS ( { 0 | 1 } )} ] ) ) ;