Density, distribution function, quantile function and random
generation for the normal mixture distribution with means equal to
'mu' and standard deviations equal to 's'.
# NOT RUN {p <- c(.4,.6)
mu <- c(1,4)
s <- c(2,3)
dmixnorm(c(0,1,2,20),p,mu,s)
pmixnorm(c(0,1,2,20),p,mu,s)
qmixnorm(c(0,1,.2,.20),p,mu,s)
rmixnorm(3,p,mu,s)
# }