[Limdep Nlogit List] Simulating WTP command

[Harold Mayaba]

 Dear Professor Greene and Nlogit users,
Can someone please help me with the command I could use to generate WTP figures in combination with the syntax below: 
NLOGIT

; lhs = choice

;hr2=one

; choices = alt1, alt2, none

;rpl =  male, age, income

;fcn= caged(n) ,acdoors(n), nprs(n|#000),cert1(n|#000),cert2(n|#000),mmort(n|#000),hmort(n|#000)

;pds =10

; pts = 500

;maxit=200

;describe

;crosstab

;pwt

;effects:caged(*)/acdoors(*)/price(*)

 ;full

;parameters

; halton

;effects: caged (*) /acdoors(*)/price(*)

;wtp=caged/price,acdoors/price,nprs/price ,cert2/price

,hmort/price

; model:

U(alt1) = caged*caged+acdoors*acdoors+nprs*nprs+cert1*cert1+ cert2*cert2+mmort*mmort+hmort*hmort +price*price/

U(alt2) =caged*caged+acdoors*acdoors+nprs*nprs+cert1*cert1+cert2*cert2+mmort*mmort+hmort*hmort  +price*price/

U(None) = None$

Regards
Harold