Hi R-Group,
I am stuck with the following problem: I am constructing a portfolio of
2 variables x and y
x <- rnorm(100, mean=100, sd=4)
y <- rnorm(100, mean=120, sd=10)
which I am combining as follows to a portfolio for sampling purposes:
portfolio <- c(rep(x, 8), rep(y, 2))
In this case I have assigned the weights of 8 and 2 to calculate the
bootstrapped mean:
mean.boot <- function(z){
mean(sapply(lapply(1:20, function(i)sample(z, replace=F, size=30)),
mean))}
So far so good. But how can I bring it into table-form whereby the
combination of all 10 different weights (setting steps as 1) and their
respective bootstrapped means are printed:
weights mean.boot
1 ....
2 ....
... ....
10 ....
How can I do this?
Any suggestions most welcome.
Many thanks!
Bernd
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