correlation with boot
Please look at the help for boot, in particular what it says the form of 'statistic' should be. Possibly what you want is corr.t <- function(data, ind) cor(data[ind,])[1,2] nlaw appears to be a single-column matrix: that will not work either.
On Mon, 1 Sep 2008, ctu at bigred.unl.edu wrote:
Hi R users, I have one simple question but I really don't know why I can't get it work. The data was adopted from Efron's An introduction to the bootstrap book.
nlaw
LSAT GPA [1,] 576 3.39 [2,] 635 3.30 [3,] 558 2.81 [4,] 578 3.03 [5,] 666 3.44 [6,] 580 3.07 [7,] 555 3.00 [8,] 661 3.43 [9,] 651 3.36 [10,] 605 3.13 [11,] 653 3.12 [12,] 575 2.74 [13,] 545 2.76 [14,] 572 2.88 [15,] 594 2.96
nlaw<-as.matrix(law[,-1])
corr.t<-function(data){
+ return(boot::corr(data)) + }
law.boot<-boot(data=nlaw,statistic=corr.t,R=49)
Error in statistic(data, original, ...) : unused argument(s) (1:15) many thanks for the help Chunhao
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