请问大家一下这行代码是有什么问题吗，为什么显示invalid syntax?
gen O-Score=-1.32-0.407*logTAit+0.63*TLitTAit-1.43*WCitTAit+0.076*CLitCAit-1.72*OENEG-2.37*NLitTAit-1.83*OIBDitTAit+0.285*NLitTAit-0.521*chin