Dear John, Dear Rui,
I really thank you a lot for your R code.
Best,
SV
Le jeudi 30 décembre 2021, 05:25:11 UTC+1, Fox, John a écrit
:
Dear varin sacha,
You didn't correctly adapt the code to the median. The outer call to mean() in
the last line shouldn't be replaced with median()
Dear varin sacha,
You didn't correctly adapt the code to the median. The outer call to mean() in
the last line shouldn't be replaced with median() -- it computes the proportion
of intervals that include the population median.
As well, you can't rely on the asymptotics of the bootstrap for a
On 12/29/21 11:08 AM, varin sacha via R-help wrote:
Dear David,
Dear Rui,
Many thanks for your response. It perfectly works for the mean. Now I have a
problem with my R code for the median. Because I always get 1 (100%) coverage
probability that is more than very strange. Indeed,
Dear David,
Dear Rui,
Many thanks for your response. It perfectly works for the mean. Now I have a
problem with my R code for the median. Because I always get 1 (100%) coverage
probability that is more than very strange. Indeed, considering that an
interval whose lower limit is the smallest
Hello,
The code is running very slowly because you are recreating the function
in the replicate() loop and because you are creating a data.frame also
in the loop.
And because in the bootstrap statistic function med() you are computing
the variance of yet another loop. This is probably
I’m wondering if this is an X-Y problem. (A request to do X when the real
problem should be doing Y. ) You haven’t explained the goals in natural or
mathematical language which is leaving me to wonder why you are doing either
sampling or replication (much less doing both within each iteration
Dear R-experts,
Here below my R code working but really really slowly ! I need 2 hours with my
computer to finally get an answer ! Is there a way to improve my R code to
speed it up ? At least to win 1 hour ;=)
Many thanks
library(boot)
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