WEIGHT BY freq. PLUM y WITH black newstereo oldneutral oldstereo /CRITERIA=CIN(95) DELTA(0) LCONVERGE(0) MXITER(100) MXSTEP(5) PCONVERGE(1.0E-6) SINGULAR(1.0E-8) /LINK=PROBIT /LOCATION=black newstereo oldneutral oldstereo black*newstereo black*oldneutral black*oldstereo /PRINT=FIT KERNEL PARAMETER SUMMARY /SCALE=newstereo oldneutral oldstereo black*newstereo black*oldneutral black*oldstereo.