Hello, my name is Alfonso. I'm trying to apply bootstrap to a database.
This database present as variables: cohort, age, length, an group. The variable
group is unique for each age*cohort, at this way, if we have 18 cohorts and we
study individuals with an age between 2 and 10 years (9 diferent ages) then we
will have 162 (9*18) diferent numbers in the variable named as group.
I would like to apply bootstrap to this database but taken into account the
variable group, at this way the resample would be carry out for each cohort*age.
I've tried to do it with this sentence:
boo <- bootstrap(subset.cod,cod.bootstr,nboot=5,
strata=subset.cod$Groups,sim="ordinary")
and also at this way:
boo <- bootstrap(subset.cod,nboot=5,cod.bootstr,group=Groups)
But I've obtained the beginning error message:
Error in FUN(newX[, i], ...) :
unused argument(s) (strata = c(1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2...
Please, if someone knows something about this question, please let me
know. All sugestions will be wellcome, thank you in advance.
Alfonso.
_________________________________________________________________
La vida de los famosos al desnudo en MSN Entretenimiento
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
