Software error_large number for attribute level
Posted: Tue Dec 02, 2014 3:13 am
Dear Ngene team,
I'm trying to do a pivot design with a fixed level for the first alternative. One of my attributes has a fixed level of 22,000, but unfortunately any time I try to run my syntax I get an error and the software closes automatically, however when I try it with a smaller number such as 2,200, I don't receive any error. Could you please let me know how I could deal with this issue?
Below is an example of my syntax:
Design
;alts = alt1, alt2, alt3, alt4
;rows = 48
;block = 8
;eff = (mnl,d)
;rep = 1000
;rdraws = halton(500)
;model:
U(alt1) = b1[-0.2] * X1.ref[22000] + b3[-0.1] * X3.ref[513]/
U(alt2) = b1 * X1.piv[0%,50%] + b2[0.1] * X2[0,7.5,15] + b3 * X3.piv[-50%,-25%,0%]/
U(alt3) = b1 * X1.piv[0%,50%,100%] + b2 * X2[0,7.5,15] + b3 * X3.piv[-50%,-25%,0%]/
U(alt4) = b1 * X1.piv[0%,50%,100%] + b2 * X2[0,7.5,15] + b3 * X3.piv[-75%,-50%,-25%]$
Regards,
Elnaz
I'm trying to do a pivot design with a fixed level for the first alternative. One of my attributes has a fixed level of 22,000, but unfortunately any time I try to run my syntax I get an error and the software closes automatically, however when I try it with a smaller number such as 2,200, I don't receive any error. Could you please let me know how I could deal with this issue?
Below is an example of my syntax:
Design
;alts = alt1, alt2, alt3, alt4
;rows = 48
;block = 8
;eff = (mnl,d)
;rep = 1000
;rdraws = halton(500)
;model:
U(alt1) = b1[-0.2] * X1.ref[22000] + b3[-0.1] * X3.ref[513]/
U(alt2) = b1 * X1.piv[0%,50%] + b2[0.1] * X2[0,7.5,15] + b3 * X3.piv[-50%,-25%,0%]/
U(alt3) = b1 * X1.piv[0%,50%,100%] + b2 * X2[0,7.5,15] + b3 * X3.piv[-50%,-25%,0%]/
U(alt4) = b1 * X1.piv[0%,50%,100%] + b2 * X2[0,7.5,15] + b3 * X3.piv[-75%,-50%,-25%]$
Regards,
Elnaz