similar to: foor loop - undefined columns selected error

Hallo, yesterday I was puzzled when I discovered that I probabliy miss something in the interepretation of intercept in two-way lm models. I thought that the intercept, using the default contr.treatment contrasts, represents the mean of the group of observations having zero in all column of the model.matrix. It turns out not to be case To be more more clear I am attaching a short example:

Full updated EL6: Does someone have the same behaviour, unstable eth interface (tg3/no dhcp)? Jan 19 18:01:46 ane kernel: tg3 0000:04:00.0: eth0: Link is up at 1000 Mbps, full duplex Jan 19 18:01:46 ane kernel: tg3 0000:04:00.0: eth0: Flow control is on for TX and on for RX Jan 19 18:01:46 ane kernel: tg3 0000:04:00.0: eth0: EEE is enabled Jan 19 18:01:46 ane NetworkManager[1735]: <info>

My name is Michela Marignani and I'm an ecologist trying to solve a problem linked to knight' s tour algorithm. I need a program to create random matrices with presence/absence (i.e. 1,0 values), with defined colums and rows sums, to create null models for statistical comparison of species distribution phenomena. I've seen on the web many solutions of the problem, but none provides

Hello, I write to know how can I modify the x axis : when I plot a survival object, R plots a graph with x values = 0, 10, 20, 30 while I want a graph with values 0, 6, 12, 18, 24 in the x axis. How can I do this? In R 2.1.1 version there was "time.inc" in survplot, but in version R 2.2.0 there isn't it! I am sorry for my english and I hope that you understand my problem. Thank you

Dear R-Users, I have a model with a latent variable for a spatio-temporal process. I would like to use EM algorithm to estimate the parameters. Does anybody know how to implement the algorithm in R? Thank you very much in advance, Michela

Hallo, I have a question that is more statistic related than about nlme and R functioning. I want to fit a complicated nonlinear model with nlme with several different measures of transpiration taken on each of the 220 trees grouped in 8 families. The unknown parameters of the model are three + their variances (and covariances). I want to estimate the variances among families of the

Dear R users, we are trying to do some parallel computing using library(snow). In particular we have a cluster with 3 nodes >cl <- makeCluster(3, type = "MPI") 3 slaves are spawned successfully. 0 failed. and we want to compute the function op_mat (see below) first with the master and then with the cluster using system.time for checking the computational performance.

Dear Simon, Thank you for your quick reply! I used to perform the GAMsetup in the following manner: GAMsetup sintax: x.summer: vector used for construct the spline knots<-14 N<-length(x.summer) x<-array(x.summer,dim=c(1,N)) G<-list(m=1,n=N,nsdf=0,df=knots+1,dim=1,s.type=0,by=0,by.exists=FALSE,p.order=0,x=x,n.knots=knots,fit.method="mgcv") H<-GAMsetup(G) with the

Dear R-users, we are using library(snow) for computation on a linux cluster with RMPI. We have a problem with clusterEvalQ: after launching clusterEvalQ it seems loading the required library on each node but if we type a function belonging to the loaded package R doesn't find it. > library(snow) # making cluster with 3 nodes > cl <- makeCluster(3, type = "MPI") Loading

Dear R-users, I have a little problem that I can't solve by myself. I have a data frame with 2 factors and 8 observations (see the following code): y <- c(1,1,1,2,2,3,3,3) y <- factor(y) levels(y) <- c("a","b","c") x <- c(1,2,3,1,2,1,2,3) x <- factor(x) levels(x) <- c("x","y","z") X <-

Hi everybody, I'm a beginner in R and I'm having a hard time grouping my data by day. The data are in this format: id; words 2005-07-07T09:59:56Z; 35 2005-07-07T10:01:39Z; 13 2005-07-08T10:02:22Z; 1 2005-07-09T10:03:16Z; 23 2005-07-10T10:04:23Z; 39 2005-07-10T10:04:39Z; 15 I've transformed the date strings in dates with the function: london$id <- transform(london$id,

Hi , could any one tell samba user authenticate from mysql database and give permissions to read write ane execute and at the same time it should browse in window Network Neighborhood and authentciate with mysql server Bye Parvatam Venkata Jagannadharao _________________________________________________________________ Chat with friends online, try MSN Messenger: http://messenger.msn.com

Bugs item #4101, was opened at 2006-04-14 11:27 You can respond by visiting: http://rubyforge.org/tracker/?func=detail&atid=411&aid=4101&group_id=85 Category: win32-process Group: None Status: Open Resolution: None Priority: 3 Submitted By: Nobody (None) Assigned to: Nobody (None) Summary: create hash param Initial Comment: hi, problem with process, when I do pid = Process.create(

Dear R user, I'm trying to find a solution for optimizing my code. I have to run a 50.000 iteration long simulation and it is absolutely necessary to have an optimized code. I have to do this operation *sum_t ( t(X_t) %*% A %*% X_t )* where X_t is a (d*k) matrix which changes in time and A is a constant in time (d*d) matrix. I have put all my X_t in a three dimensional array X of dimension

Hi there... I have some experience in building web applications but all of them have been intranet apps so I have never had to think about things like caching. Actually my experience with caching has more been in the area of removing it since it just gets in the way for a intranet app with 10-100 users. But now I am writing a site which might stand or fall by the quality of it''s

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Dear R-Users, I'm using SSPIR package for a spatio-temporal application. Is it possible to modify the structure of the involved matrixes (Fmat, Gmat, Vmat,Wmat)? I want to create a model like this #y(t)=k*theta(t)+epsilon(t) #theta(t)=h*theta(t-1)+eta(t) #epsilon(t) N(0,V) V=sigma2*I #eta(t) N(0,W) W=sigma2_eta where the state variable theta has dimension 1(p=1) and at

Hi all, I'm using RScalapack library for parallelizing some heavy matrix operations required by MCMC methods for spatio-temporal models. The package reference manuals (dated 2005) states that the library needs LamMPI to work but we have a Linux Cluster with OpenMPI. We have found (http://cvs.fedoraproject.org/viewvc/devel/R-RScaLAPACK/) a patch for OpenMPI but we are wondering if in the

Hello all. I'm using Fedora 14. I have patched my wine yesterday using yum, ane my wine current version is: 1.3.18-1.fc14. After that, some of my programs stop to working. It seems, what something happen with MDAC component, because program can't open mdb file and can not found MDAC component from the console. The errors. what i get: err:ole:CoGetClassObject class

Hi, This is driving me nuts!! Ok, this is a home network, so not many machines! I HAD 1 windows XP machine with local profiles for everyone - worked fine. I have now installed a linux box with SAMBA on it and I have 3 desktop PCs. I have set up roaming profiles (I think) correctly according to the How-To book. I initially had some trouble getting the local profiels moved to the server, but I