[R] how to get this kind of binomial distribution simulation number?

luan_sheng luan_sheng at yahoo.com.cn
Fri May 27 15:26:11 CEST 2005

hai, I want to perform a simulation like this£º

Suppose that I have one population  ,it's size is 500, is composed of x,y
and z.  The probability of x, y and z is respectively is 0.3, 0.5, 0.2. I
wan to simulate a new same size population based ratio of x, y and z, how
can I get and assess  the number of x, y and z. ?


Key Laboratory for Sustainable Utilization of Marine Fisheries Resources,
Ministry of Agriculture ,Yellow Sea Fisheries Research Institute, Chinese
Academy of Fishery Sciences, Qingdao 266071,China



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