Re: [R] Bug : Autocorrelation in sample drawn from stats::rnorm (hmh)

2018-10-05 Thread hmh
mation you would need. cheers, hugo On 05/10/2018 09:58, Annaert Jan wrote: On 05/10/2018, 09:45, "R-help on behalf of hmh" wrote: Hi, Thanks William for this fast answer, and sorry for sending the 1st mail to r-help instead to r-devel. I noti

Re: [R] Bug : Autocorrelation in sample drawn from stats::rnorm (hmh)

2018-10-05 Thread hmh
I got it ! thanks and sorry for annoying you with that. have a nice day, hugo On 05/10/2018 11:16, Deepayan Sarkar wrote: > On Fri, Oct 5, 2018 at 2:07 PM hmh wrote: >> On 05/10/2018 10:28, Annaert Jan wrote: >>> you discard any time series structure; >> But that

Re: [R] Bug : Autocorrelation in sample drawn from stats::rnorm (hmh)

2018-10-05 Thread hmh
On 05/10/2018 10:28, Annaert Jan wrote: > you discard any time series structure; But that is PRECISELY what a call a bug: There should not be any "time series structure" in the output or rnorm, runif and so on but there is one. rnorm(N,0,1) should give on average the same output as

Re: [R] Bug : Autocorrelation in sample drawn from stats::rnorm (hmh)

2018-10-05 Thread hmh
Hi, Thanks William for this fast answer, and sorry for sending the 1st mail to r-help instead to r-devel. I noticed that bug while I was simulating many small random walks using c(0,cumsum(rnorm(10))). Then the negative auto-correlation was inducing a muchsmaller space visited by the random

[R] Bug : Autocorrelation in sample drawn from stats::rnorm

2018-10-04 Thread hmh
Hi, I just noticed the following bug: When we draw a random sample using the function stats::rnorm, there should be not auto-correlation in the sample. But their is some auto-correlation _when the sample that is drawn is small_. I describe the problem using two functions:

[R] Using cforest on a hierarchically structured dataset

2017-11-18 Thread hmh
Hi, I am facing a hierarchically structured dataset, and I am not sure of the right way to analyses it with cforest, if their is one. - - BACKGROUND & PROBLEM We are analyzing the behavior of some social birds facing different temperature conditions. The behaviors of the birds were