Hi,
In the following function, i hope to save my simulated data into the
"result" dataset, but why the final "result" dataset seems not to be
generated.
#Function
simdata<-function (nsim) {
result<-matrix(NA,nrow=nsim,ncol=2)
colnames(result)<-c("x","y")
for (i in 1:nsim) {
set.seed(i)
result[i,]<- cbind(runif(1),runif(1))
}
return(result)
}
#simulation
> simdata(10) #correct result
x y
[1,] 0.2655087 0.372123900
[2,] 0.1848823 0.702374036
[3,] 0.1680415 0.807516399
[4,] 0.5858003 0.008945796
[5,] 0.2002145 0.685218596
[6,] 0.6062683 0.937641973
[7,] 0.9889093 0.397745453
[8,] 0.4662952 0.207823317
[9,] 0.2216014 0.024233910
[10,] 0.5074782 0.306768506
But, the dataset "result" wasnot assigned the above values. What is the
problem?
> result #wrong result??
x y
[1,] NA NA
[2,] NA NA
[3,] NA NA
[4,] NA NA
[5,] NA NA
[6,] NA NA
[7,] NA NA
[8,] NA NA
[9,] NA NA
[10,] NA NA
>
Thanks a lot.
--
-----------------
Jane Chang
Queen's
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