Hello,

I want to bootstrap from a population in a zoo object. For example, I
have a set of returns for the S&P and want to bootstrap from this set
over time. I can do this with the below code, and I wanted to know if
there is a more elegant approach?

> h <- sp500.subset[sample(index(sp500.subset), 100, TRUE),]

I was hoping that a cleaner call would work, but apparently the length
is being used in the call to sample:

> h <- sample(sp500.subset, 100, TRUE)
Error in `[.zoo`(x, .Internal(sample(length(x), size, replace, prob))) :
  subscript out of bounds

Any thoughts or should I stick with the above approach?

Thanks,
Brian


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