Successful! Thank you!
2010/9/6 David Winsemius <dwinsem...@comcast.net> > > On Sep 6, 2010, at 1:13 PM, tamas barjak wrote: > > Hello! >> >> I need some help. >> How I know it to draw the formula of the poisson distribution? >> >> expr<-expression(P(xi == k) == frac(lambda^k, factorial(k))*e^-lambda) >> ---> >> not good >> > > ?plotmath > > (Do not see factorial as a plotmath "function" > > Try: > > expr<-expression(P(xi == k) == frac(lambda^k, k*"!")*e^-lambda) > > > >> on the screen the " k! " not the Poisson Formula, but "factorial(k)" >> >> Thanx! >> > > -- David. > [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.