[R] superimpose density line over hist

[Albert Vilella]

This certainly did the trick,

Thanks Ted, Sean, Romain, Dimitris, Lian and Andy,

>   alnlength<-rchisq(1000,4)
>   x<-0.25*(0:100)
>   hist(alnlength,breaks=0.25*(0:100))
>   lines(x,1000*dchisq(x,4)*0.25)

And apologies for my "newbieness" in the posting,

    Albert.