[NTG-context] How to define a TeX logic function with a boolean returned from a Lua function and \edef fixed value

Dear sirs, Is there a way to compare, in TeX environment, a value returned from a lua function with a TeX variable? Please see this code: \def\aleatorioValue{ \startlua local nu = math.random(1,10); if nu<5 return 1 else return 0 end \stoplua } \edef\controlValue{1} \edef\inferior{Number too small \\} \edef\superior{Number too big \\} \def\myfunction{\ifx\aleatorioValue\controlValue\inferior\else\superior\fi} \starttext \dorecurse{20}{\myfunction} \stoptext Thanks a lot. Have a nice day Jorge