运行结果及报错内容
``` TITLE:A lette
DATA:
FILE IS D:\CGSS\Z.dat;
VARIABLE:
MISSING ARE ALL (-99);
NAMES ARE ZF1 ZF2 ZC ZSSC ZW ZS;
USEVARIABLE = ZF1 ZC ZSSC ZW SSCC ZZFC;
DEFINE:SSCC = ZSSC*ZC;
ZZFC = ZF1*ZC;
ANALYSIS:bootstrap = 1000;
MODEL:ZW ON ZF1(b1)
ZSSC
ZC
ZZFC(b2)
SSCC;
ZF1 ON ZSSC(a1)
ZC
SSCC(a3);
ZZFC with ZF1;
MODEL CONSTRAINT:
new(ind wmod);
wmod = -1
ind = (a1 + a3*wmod)*(b1 +b2*wmod);
OUTPUT:CINTERVAL(bcbootstrap);
*** ERROR in MODEL CONSTRAINT command
Only one sign (=, > or <) is allowed for each statement. Problem with the
following statement starting with: WMOD.