[R] bootstrap function

shu chen chenshu at umich.edu
Tue Sep 6 19:31:56 CEST 2011

Hi, all,

When I ran the following code,

library (Design)

reri <- function(datsam)
fitlr <- glm(PTSDpy ~ toxo*PTE, family=binomial, data=datsam)

reri <- exp(fitlr$coef[2]+fitlr$coef[3]+fitlr$coef[4])-exp(fitlr$coef[2])
- exp(fitlr$coef[3]) + 1


summary.bootstrap(bootstrap(PTE.work, reri(PTE.work),B=10000,
group=PTE.work$PTSDpy), probs=c(0.025,0.5,0.975))

Error: could not find function "summary.bootstrap"

Does anyone know which package Functions "summary.bootstrap" and
"bootstrap" are located?

Thanks a lot.


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