[R] Using boot.ci "norm" not working

[Rui Barradas]

Hello,

When the confidence interval is the normal CI, the return matrix has 
only 3 columns, all other CI's return a matrix with 5 columns. See 
section value in ?boot.ci.
So just change

$norm[, 4:5]

to

$norm[, 2:3]


Hope this helps,

Rui Barradas

Às 22:24 de 16/12/21, varin sacha via R-help escreveu:
> Dear R-experts,
> 
> Here below my R code. Using "bca" in the boot.ci function at the end of my R code works perfectly. Using "perc" and "basic" perfectly works as well. But using "norm", my R code does not work anymore.
> Is it possible to solve that problem and to make my R code work ?
> 
> ################################################
> library(boot)
> 
> s<- sample(178:798, 10000, replace=TRUE)
> mean(s)
> 
> N <- 100
> out <- replicate(N, {
> a<- sample(s,size=5)
> mean(a)
> 
> dat<-data.frame(a)
> med<-function(d,i) {
> temp<-d[i,]
> mean(temp)
> 
> }
> 
>    boot.out <- boot(data = dat, statistic = med, R = 10000)
>    boot.ci(boot.out, type = "norm")$norm[, 4:5]
> })
> mean(out[1,] < mean(s) & mean(s) < out[2,])
> ################################################
> 
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