generate random number

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Age should be generated from 2 to 20 based on the below command for 2000 subjects:

AGE=round(runif(2000,2,20),1)

However, I would like to generate these 2000 subjects with
29% subjects from age 2 to 4
17% subjects from age 5 to 9
24% subjects from age 10 to 14
30% subjects from age 15 to 20

Is there a smart way to do this? Thanks!

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关键词：generate Number random rand Rate generate number

1. age1=round(runif(2000*0.29,2,4),1)
   
2. age2=round(runif(2000*0.17,5,9),1)
   
3. age3=round(runif(2000*0.24,10,14),1)
   
4. age4=round(runif(2000*0.30,15,20),1)
   
5. AGE=c(age1,age2,age3,age4)

复制代码

a pediatric population should be generated from 2 to 20 based on the below command for 2000 subjects:

NID=2000
TM<-
data.frame(ID=seq(1,NID,by=1),AGEM=round(runif(NID,2,20)*12,1),SEX=rep(1:2,each=round(NID/2)))

However, I would like to generate these 2000 subjects with
34% subjects from age 2 to 10
66% subjects from age 11 to 20

Is there a smart way to do this and also keep original randomness? Thanks!