typesky
各位高手,我做的毕业论文里有一部分要对一个样本(X1,,,,,,X10)共10个数进行bootstrap抽样,需要得到10000组样本,然后得出样本均值的分布参数估计.我以前没接触过这方面的知识,不知道如何得到这10000组数,然后怎么进行统计分析,需要用什么软件么?笔算的话太多了....
先谢谢了!
xuanie
用R做比较快
X = c(x1, x2, x3, x4, x5, x6, x7, x8, x9, x10) ## The original data
nrep = 1e5 ## You want to get 100 000 bootstrap samples
p = length(X)
ii = ceiling(p*runif(p*nrep))
B = X[ii]
B= array(B, c(nrep, p)) ## each row of B holds a bootstrap sample
## Or, you might want to try function sample(..., replace = FALSE)
