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

From: luan_sheng <luan_sheng_at_yahoo.com.cn>
Date: Fri 27 May 2005 - 23:26:11 EST

hai, I want to perform a simulation like this:

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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