similar to: Mixed models and learning curves

Hello, I am trying to learn how to create a simulated dataset of a forest stand: I must simulate 10 stands, for each of the stands I have been creating a random number of trees. For each tree I should create a random diameter. The problem I have is that I cannot use a matrix because the length of the three items is different. I was trying with list but I have no clue on how to make a dataset out

Hello everybody, Anyone familiar with the package frontier? I have some general questions on how to approach the model design. Thanks in advance Giovanna Giovanna Ottaviani Aalmo Stipendiat/Ph.D. Student ------------------------------------------- Norsk institutt for skog og landskap Pb 115, NO-1431 Ås T (+47) 64 94 9094 M(+47) 980 30 422 F(+47) 64 94 90 80

Dear All, In the last few days I started using the last version of R as I encountered a problem with R1.9 and the use of RWinEdt, however the problem shows with R2.01 as well. More precisely 1. I install R2.01 after removing old verions of R 2. I Install RWinEdt package versione RWinEdt_1.6-2 and SWinRegistry_0.3-2 and everything seems fine 3. I recall the RWinEdt library (library(RWinEdt)) and

Dear R helpers, I'm using R2.2 under windows XP professional on a Dell double processor workstation. I have a large (29Mb) workspace that I'm trying to load both, by double clicking and by direct load. The message I get is "Bad restore file magic number (file may be corrupted)...". I believe that this is a consequence of a huge spike in the electrical system that my voltage

Hi, i have to optimise a function f(a,b), with a, b vectors in R^d such that a and b are orthogonal, that is a'b=0. Anybody has a suggestion? Thanks, in advance, for your help, Giovanna _________________________________________________________________ [[elided Hotmail spam]] [[alternative HTML version deleted]]

Just set up postfix & it's running on my RHES 4.2 box. Immediately after postfix is up, I test sending emails from a permitted domain (ahhh, on this postfix server's domain firewall, we even have a firewall rule which permits Tcp25 from those few sending domains' SMTP servers) using an email client to sender_id@[IP_address_of_the_postfix_server] & the /var/log/maillog on

I'm collaborating with and electronic musician to experiment on the production of music from number sequences. As I'm an R user I started playing around with the sound library and I found it very useful. However there are several things I do not understand (I'm not an expert in acustic nor audio signal treatment). The first thing I'd like to understand is: let s be a normalized

Dear all, For my research I need to perform a Levene's test on my data.I have not large experience with this test and with R,so I have some problems to use the leveneTest function. I read some previous posts on this topic but I cannot understand what I have to do. I have a five-columns data frame organised in the following way: number of observation, number of subject, score, type of

Enviado desde mi smartphone BlackBerry Z10 4G Lte.   Mensaje original   De: admin at pr.copextel.com.cu Enviado: sábado, 7 de mayo de 2016 12:30 a.m. Para: admin at pr.copextel.com.cu Asunto: Daily mail report for 2016-05-06 Grand Totals ------------ messages 409 received 4135 delivered 0 forwarded 10 deferred (114 deferrals) 14 bounced 90 rejected (2%) 0 reject warnings 0 held 0 discarded (0%)

[Apologies if you receive multiple copies of this announcement] Reminder: ------- * Paper submission deadline: May 31, 2010 ======================================================================== Call for Papers The 2nd International Conference on Cloud Computing (CloudComp2010) Barcelona, Spain, October

[Apologies if you receive multiple copies of this announcement] Reminder: ------- * Paper submission deadline: May 31, 2010 ======================================================================== Call for Papers The 2nd International Conference on Cloud Computing (CloudComp2010) Barcelona, Spain, October

Update: ------- * Paper submission deadline extended to: June 14, 2010 ======================================================================== Call for Papers The 2nd International Conference on Cloud Computing (CloudComp2010) Barcelona, Spain, October 25 - 28, 2010

Update: ------- * Paper submission deadline extended to: June 14, 2010 ======================================================================== Call for Papers The 2nd International Conference on Cloud Computing (CloudComp2010) Barcelona, Spain, October 25 - 28, 2010

I have a file server with two shares accessible to 2 different groups. After the last update ( from debian 2:3.2.5-4 to 2:3.3.2-1 ) i cannot any more access ONLY ONE of the two shares and I can't understand the reason! Can anyone hel me? I'm getting mad! Thanks Giorgio from smb.conf: [documenti_movi] path = /home/documenti_movi valid users = @staffmovi read

Hello, I hope you can help me! I`m trying to tune svm parameters: cost and gamma for a landsat image classification, but I get an error and I can't understand it. I write this: > tune(svm, Class~., data = mdt01bis, ranges = list(gamma = 2^(-15:3), cost > = 2^(-5:15))) and R gives: Error en predict.svm(model, if (!is.null(validation.x)) validation.x else if (useFormula)

Dear experts, I just noticed that I get different results conducting type III anova using drop1 or the Anova command from the car package. I suppose I made a mistake and hope you can offer me some help. I have no idea where I got wrong and would be very grateful for explaination as R is new terrain for me. If I run the commands in line, they produce the same results. But if I run them in

I'm getting closer, now with SMTP permitted to whole of Internet to connect to my SMTP/postfix server & for my postfix server to connect out to public Internet on tcp 25 as well. I send emails from permitted domain's SMTP servers with "Receipt Acknowledgemt" & the ack returned said it was delivered but somehow there's no mail in the mailbox & using the site below

Isn''t it possible with iptables to filter on DSCP field? Thanks, Tom Aernoudt

Hi, I have a transition matrix T for which I want to find the steady state matrix for. This could be approximated by taking T^n , for large n. T= [ 0.8797 0.0382 0.0527 0.0008 0.0212 0.8002 0.0041 0.0143 0.0981 0.0273 0.8802 0.0527 0.0010 0.1343 0.0630 0.9322] According to a text book I have T^200 should have reached the steady state L L

Imagine that I have a large number of points (given by coordinates x and y) that vary in density per space. For the purpose of demonstration it could be generated like this: s <- data.frame(x=runif(10000,0,900),y=runif(10000,0,900)); plot(s) I want to create polygons around the points where point density is greater than a selected threshold (for example, by using krieging or equivalent