[R] Fwd: Computing the density of a median
Dioggban Jakperik
j@kper|k@d|oggb@n @end|ng |rom @tudent@@jku@t@@c@ke
Mon Aug 20 23:49:59 CEST 2018
Dear all,
I have the following function
kdenor <- function(aa,q=NULL){
a=sample(aa,500,replace=F)
ab=quantile(a, p=0.75)-quantile(a, p=0.25)
h=(0.9*min(var(a),ab))/(1.34*n^(1/5))
if(is.null(q)) {
q = seq(min(a)-3*h, max(a)+3*h, length.out=length(a))
}
nx = length(a)
nq = length(q)
xmat = matrix(q,nq,nx) - matrix(a,nq,nx,byrow=TRUE)
denall= dnorm(xmat/h)/h
denhat = apply(denall,1,mean)
f<-denhat
f1<-median(f)
#das<-list(x=q, y=denhat, h=h)
#return(das)
}
f1<-kdenor(aa)
My interest is to obtain the estimate of the density at the median of the
sample data.
But the output of the current function doesn't provide the correct result.
Kindly help.
Regards.
--
Jakperik Dioggban (Student, PAUISTI)
PhD Mathematics (Statistics Option)
Determination is Key to Success
--
Jakperik Dioggban (Student, PAUISTI)
PhD Mathematics (Statistics Option)
Determination is Key to Success
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