similar to: a coding problem from Ross Simulation book

Hello, Guys: I'm from China, my English is poor and I'm new to R. The first message I sent to R help meets some problems, so I send again. Hope that I can get useful suggestions from you warm-hearted guys. Thanks. I builded a multiplicative seasonal ARMA model to a series named "cDownRange". And the order is (1,1)*(0,1)45 The regular AR=1; regular MA=1; seasonal AR=0; seasonal

Hi, there Below is my code to one Homework question. I couldn't come up with the reasonable answer. could you please help me to figure out what is the problem with my code? thank you Question is Coding P{X=j} =(1/2)^(j+1) + (1/2) *2^(j-1)/3^j my code is sim <- function(n.gen){ urandom <- runif(n.gen) sim.vector <- rep(0,n.gen) for(j in

Ross Ihaka wrote to Tom Cook (who CCed it to me): > [ regarding "density" and "angle" for polygon hatching ] > > I have just found a student volunteer to do this. I will > know more about how long this will take in about a week. (Its not a > huge task, but the student make take while to up to speed on graphics.) Ross: You move fast! However, I'm in

I read this paper <https://www.stat.auckland.ac.nz/~ihaka/downloads/Compstat-2008.pdf> and haven't been able to find out what happened - I have seen some sporadic mention in message groups but nothing definitive. Does anyone know? [[alternative HTML version deleted]]

When it was being actively worked on, it had the advantage of existing. Hadley On Fri, Aug 5, 2016 at 10:48 AM, Kenny Bell <kmbell56 at gmail.com> wrote: > Why is the described system preferable to Julia? > > On Fri, Aug 5, 2016, 4:50 AM peter dalgaard <pdalgd at gmail.com> wrote: > >> >> On 05 Aug 2016, at 06:41 , Andrew Judson <ajskim at gmail.com>

No. Hadley On Fri, Aug 5, 2016 at 11:12 AM, Kenny Bell <kmbell56 at gmail.com> wrote: > Is it conceivable that Julia could be ported to use R syntax in a way that > would allow the vastly larger numbers of R programmers to seamlessly switch? > Or equivalently, could an iteration of R itself do this? > > > On Fri, Aug 5, 2016, 9:00 AM Hadley Wickham <h.wickham at

I came across a quite interesting post from Ross Ihaka, thought would be good to share it and get the opinion of folks around here. I am not sure where to post this for the R community but since it has to do with development I thought or R-devel Ross Ihaka Newsgroups: comp.lang.lisp From: Ross Ihaka <ih... at stat.auckland.ac.nz> Date: Wed, 23 Jan 2008 10:35:26 +1300 Local: Tues, Jan 22

Why is the described system preferable to Julia? On Fri, Aug 5, 2016, 4:50 AM peter dalgaard <pdalgd at gmail.com> wrote: > > On 05 Aug 2016, at 06:41 , Andrew Judson <ajskim at gmail.com> wrote: > > > I read this paper > > <https://www.stat.auckland.ac.nz/~ihaka/downloads/Compstat-2008.pdf> and > > haven't been able to find out what happened - I

But you can easily fall back to R from within Julia; see http://juliastats.github.io/RCall.jl/latest/ On Aug 5, 2016 1:27 PM, "Hadley Wickham" <h.wickham at gmail.com> wrote: > No. > > Hadley > > On Fri, Aug 5, 2016 at 11:12 AM, Kenny Bell <kmbell56 at gmail.com> wrote: > > Is it conceivable that Julia could be ported to use R syntax in a way > that

Is it conceivable that Julia could be ported to use R syntax in a way that would allow the vastly larger numbers of R programmers to seamlessly switch? Or equivalently, could an iteration of R itself do this? On Fri, Aug 5, 2016, 9:00 AM Hadley Wickham <h.wickham at gmail.com> wrote: > When it was being actively worked on, it had the advantage of existing. > > Hadley > > On

Hello all, There is currently a (very !) lively discussions happening around the web, surrounding the following topics: 1) Is R efficient? (scripting wise, and performance wise) 2) Should R be written from scratch? 3) What should be the license of R (if it was made a new)? Very serious people have taken part in the debates so far. I hope to let you know of the places I came by, so you might be

On Apr 11, 2009, at 5:03 PM, Greg McGary wrote: > As we've already seen, David Chisnall prefers hacking LLVM over GCC > (see http://www.informit.com/articles/article.aspx?p=1215438): "In > contrast, every time I look at the GCC code, it takes two people to > prevent me from clawing my eyeballs out." > > I'm sorry to report that so-far I have had the

R is quite a powerful environment. Here's a small way it could be even better. I wanted to change the working directory, so I tried the obvious thing > cd("foo") Error: couldn't find function "cd" Then I looked for `directory' in the FAQ but found nothing. A search for directory in the introduction also turned up nothing. A Google search for "gnu R

As we've already seen, David Chisnall prefers hacking LLVM over GCC (see http://www.informit.com/articles/article.aspx?p=1215438): "In contrast, every time I look at the GCC code, it takes two people to prevent me from clawing my eyeballs out." I'm sorry to report that so-far I have had the opposite experience. Some years ago, I ported binutils (via CGEN) and GCC to an