Hi Raphael,
Something like that?
require(pscl)sim <- numeric()
for(i in 1:5){
eval(parse(text=paste('b',i,' <- rigamma(50,1,1)',sep='')))
eval(parse(text=paste('theta',i,' <- rgamma(50,0.5,(1/b',i,'))',sep='')))
eval(parse(text=paste('sim',i,' <- rpois(50,theta',1,')',sep='')))
eval(parse(text=paste('sim <- cbind(sim, sim',i,')',sep='')))
}
x11()
par(mfrow=c(1,5))
boxplot(c(sim1,sim2,sim3,sim4,sim5))
x11()
boxplot(sim)
Regards,
Pascal
----- Mail original -----
De : Raphael Fraser <raphael.fra...@gmail.com>
À : r-help@r-project.org
Cc :
Envoyé le : Vendredi 16 mars 2012 16h09
Objet : [R] Elegant Code
Hi,
Can anyone help to write a more elegant version of my code? I am sure
this can be put into a loop but I am having trouble creating the
objects b1,b2,b3,...,etc.
b1 <- rigamma(50,1,1)
theta1 <- rgamma(50,0.5,(1/b1))
sim1 <- rpois(50,theta1)
b2 <- rigamma(50,1,1)
theta2 <- rgamma(50,0.5,(1/b2))
sim2 <- rpois(50,theta2)
b3 <- rigamma(50,1,1)
theta3 <- rgamma(50,0.5,(1/b3))
sim3 <- rpois(50,theta3)
b4 <- rigamma(50,1,1)
theta4 <- rgamma(50,0.5,(1/b4))
sim4 <- rpois(50,theta4)
b5 <- rigamma(50,1,1)
theta5 <- rgamma(50,0.5,(1/b5))
sim5 <- rpois(50,theta5)
par(mfrow=c(1,5))
boxplot(sim1)
boxplot(sim2)
boxplot(sim3)
boxplot(sim4)
boxplot(sim5);
Thanks,
Raphael
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and provide commented, minimal, self-contained, reproducible code.
