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2005 May 04
1
stratified bootstrap with boot
...lear. My data frame
(denboot) is set up as follows:
SITE cswa parea treat
1 BeanA 3 1.20 m
2 BeanBC 3 1.05 m
3 BeanD 1 0.93 m
4 BlackB 1 1.01 m
5 Brooks 3 4.00 b
6 BullL 3 1.32 b
7 BullM 1 0.20 m
8 BullU 4 2.06 b
...
#Here is my code:
cswafun <- function(denboot, i) sum(cswa[i])/(sum(parea[i])
attach(denboot)
cswa.boot <- boot(denboot, cswafun, R = 10000, strata = treat)
#Here is the output
Call:
boot(data = denboot, statistic = cswafun, R = 10000, strata = treat)
Bootstrap Stat...