search for: specpress

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2007 Nov 22
0
Problem with tsboot
I'm trying to bootstrap some regression coefficients so that I can estimate confidence intervals, but boot is not producing results. Can anybody suggest what I'm doing wrong here? > SpecPress <- ts(rnorm(501)) > Returns <- ts(rnorm(501)) > BootData <- data.frame(cbind(SpecPress, Returns)) > boot.specpress <- function(data, indices, maxit=20){ + data <- data[indices,] + mod <- dyn$lm(SpecPress~lag(Returns,-1)+lag(SpecPress,-1)) + coefficients(mod) + } &g...