similar to: Response surface methodology

Hello, I'm looking at porting code written for Matlab to R. However, I don't have sufficient knowledge of Matlab to know whether it's feasible or appropriate. If there is anyone who has any experience in this and could provide some advice, I'd be grateful. TIA, Peter [[alternative HTML version deleted]]

I'm examining the use of the 'lm' function to solve quadratic functions. With S+ 2000, the 'lm' function can be used to solve eqns such as x1 + x2 + x1^2 + x2^2 + x1*x2. But, when trying this same eqn with R, the software does not produce any coefficients for x1^2 or x2^2. Is this a common problem? I'm using ver. 1.3.1 under Win. 2000. Thanks, Peter

Dear listers, I would like to know whether a maximum size is set for data sets in R. I'm planning on analysing data sets which have 330000 points for a sample. The response is from GCxGC output. Also, with data analysis, is there a time-cost saving by performing the analysis in Linux as against doing it in Windows XP? Many thanks, Peter [[alternative HTML version deleted]]

Hello. I am trying to do a non-linear fit using the 'nls' command. The data that I'm using is as follows pH k 1 3.79 34.21 2 4.14 25.85 3 4.38 20.45 4 4.57 15.61 5 4.74 12.42 6 4.92 9.64 7 5.11 7.30 8 5.35 5.15 9 5.67 3.24 with a transformation of pH to H <- 10^-pH When using the nls command for a set of parameters - a, b and c, I receive two sets of errors: >

Hello R-experts, I wonder whether any of the R-packages cover the Hilbert-Huang Transform methodology (HHT)? Regards, Torbjorn -- Torbj?rn Lorentzen | torbjorn.lorentzen at bjerknes.uib.no |torbjorn.lorentzen at uni.no | http://www.bjerknes.uib.no/ Phone: +47 55 58 25 05 | Cellphone: +47 906 972 36 | Bjerknes Centre for Climate Research | Geophysical Institute | University of Bergen |

Dear Colleagues would someone know a suitable online-source for information regarding the TRAMO SEATS method for time series ? (an alternative to X12 ARIMA and earlier ARIMAs used by the US census bureau) Cheers -- ----------------------------- Soren Wilkening Principal Consultant phone: +49-30-96080121 wilkening at censix.com CENSIX Consulting Statistics, Surveys, Censuses

Representative small sample of data: algorithmID <- factor(c(rep('alg1',4),rep('alg2',4),rep('alg3',4))) threshold <- factor(rep(c(.45,.50,.55,.60),times=3)) score <- c(30,32,31,30,10,12,13,14,22,21,20,24) d <- data.frame(algorithmID,threshold,score) AlgorithmID is the name of each algorithm; threshold is the value of a parameter used by the algorithm that

This is my organizations_controller_spec.rb: require ''spec_helper'' describe Superadmin::OrganizationsController do describe "GET index" do it "shows a list of all organizations" do #pending "don''t know why this doesn''t work" Organization.should_receive(:all) end end end ============ This is my

Hi all, I have a question regarding how to properly analyze a data set and then how to perform the analysis in R. First, I have data that I would like to analyze using a mixed GLM (I think this is the most appropriate method, but I am unsure). In a mixed model (y = X*beta+Z*gamma+epsilon), I would like to structure the variance matrices of gamma, G, and the error, R, to take advantage of all my

Hi all, I'm currently working on a C-like scripting language compiler backend designed to emit LLVM code. This code will be loaded into LLVM's JIT at runtime and will make calls into a C++ library (including calling virtual methods on C++ objects). The translation from our AST to an llvm::Module is fairly straightforward, the difficulty, however, comes in generating the appropriate

Hello Everyone; I am looking for a solution to record calls that come into our Asterisk server. I am hoping for something that is easy to use - however, if I have to modify it to make it easier to use, I do not mind. Does anyone know of any opensource or otherwise solutions out there that I can try out? Thanks much. Glen

Hi all, In a recent IISWC paper <http://groups.csail.mit.edu/commit/papers/19/ithemal-measurement.pdf>, we've proposed BHive - a new methodology for benchmarking arbitrary basic blocks that has several advantages over the one currently used in llvm-exegesis. In particular, the new methodology: - automatically handles memory accesses in the basic block, without the need to manually

because I am a grasshopper... Now that I can sort my ''list''...is there a logical way of not repeating myself to having essentially the same list view with multiple sorts? i.e. def list_cl # ordered by clients last name @placement_pages, @placements = paginate( :placements, :include => [:client], :order_by =>

Hi I cant get the user auth to work. Do anyone have any suggestions. See config below ---/etc/rsyncd.conf--- log file = /var/log/rsyncd.log pid file = /var/run/rsyncd.pid lock file = /var/run/rsync.lock uid = rsync gid = users [user1_dir] path = /home/rsync comment = user1 test bibliotek read only = false auth users = user1 secrets file =

Hi, After I have removed some files from the backup computer with the command find /home/user/.Maildir/.Spam/* -mtime +30 -type f -exec rm "{}" \; does the command: rsync -av -e "ssh -l root" host:/home/* /home create many duplicates. What I expect is for it to just "restore" the backup to what it was like before. I'm using rsync version 2.6.3 and

I tried a bunch of tools and ended up using Jakarta J-Meter b/c it works cross-platform (Unix/Windows in my situation) and has a gui which shallows the learning curve. I''ve been quite satisfied with it.. Search the archives on this list and you should be able to find some great info Zed and others wrote a while back on How to Load Test Correctly. I found that series of posts to be

Good afternoon! As mentioned in the subject, my question regards more the methodological part that accompanies survey design and the statistical part that is involved. So, I have the following data: a<-data.frame (id_hh=c(1:5), strata=c(1,1,2,2,1), Nhstrata=c(100,100,200,200,100), Nrmemb=c(2,4,2,5,4)) a$ocmemb1<-c("wk","jl","st","jl","st")

I''ve been having great "fun" testing the new (Puppetised) build end-to-end for several days now. The majority of the fun has been coming from vendor packages (no names mentioned), typically with conflicting permissions on files, or perhaps different home directories, UIDs for the app users so it matters in which order you do things in. My current methodology is to go through

Hi, I couldn't figure out how to use the functions from the ctest library. I'm using the r-base package that comes with debian potato. library("ctest") told me that no such package existed. I checked the CRAN, but no such package was availiable, instead I was told that it would be part of the standard installation. But functions from ctest like shapiro-wilk don't work. The

Hello, I'm using tinc for a few years now and that this is my first post to this list tells a lot about the quality of tinc, I think. It's just great, thanks a lot for your fine work! Recently I've discovered these messages in my syslog: Dec 28 16:34:06 vdr tinc.grue[9731]: Possible intruder ix (192.168.178.25 port 60882): wrong keylength Dec 28 16:34:06 vdr tinc.grue[9731]: Error