similar to: hel on leveneTest

hello, I try to run simulation of levene's test to find the p-value but the error of replacement has length zero occur, could anyone help me to fix this problem? asim <- 1000 pv<-rep(NA,asim) for(i in 1:asim) {print(i) set.seed(i) g1 <- rnorm(20,0,2) g2 <- rnorm(20,0,2) g3 <- rnorm(20,0,2) x <- c(g1,g2,g3) group<-as.factor(c(rep(1,20),rep(2,20),rep(3,20))) library(Rcmdr)

Dear R-users, the problem I'm facing today is to write a multicolor main title in a plot. I would like to have 3/4 colors to help people in the audience to visually realize what is what in a 4x2 plot array On top of each plot I would like to have two lines. The 1st line will indicate what is plotted The 2nd line will indicate a a reference Graphically speaking I would like a result similar

Hello R list, I am hoping to conduct a logistic regression with repeated measures, and would love an actual "code run through" for such an analysis. I found only one related post on this list, but a full answer was never provided. I understand that the routine lmer (or lmer2) in the lme4 package is often recommended in such a case, but actually implementing it is where I've hit a

Hi, I am new to this list as a poster, but a reader for some time. I've using R for several weeks now, and I have a lot of questions about certain procedures. Here I go: I want to test if there are differences in the time spent by pollinators visiting flowers of a given plant species, according to a number of experimental manipulations made on those flowers. All experimental

Hi, I would like to compute the autocorrelation time from my 2-D time series, but I cannot find how to do using R. I have found the fucntion acf and acf plot, but how can find the autocorrelation time? thanks -- View this message in context: http://r.789695.n4.nabble.com/help-on-autocorrealtion-time-tp2065129p2065129.html Sent from the R help mailing list archive at Nabble.com.

Hi there, I want to do a nonparametric covariance analysis and I have tried to use the package "sm" function "sm.ancova" but it didn't work for me because I have more then one covariates (I have 18 covariates and 3 factors). I want to analyse for one factor (who has 13 levels) where the differences for my response are, using the explanatory (covariates). (The other two

Excellent - many thanks to all. To be honest i found the manual "An introduction to R" not very user-friendly. Thanks all. Mark > -----Original Message----- > From: Uwe Ligges [mailto:ligges at statistik.uni-dortmund.de] > Sent: 21 August 2002 11:08 > To: Mark Edwards > Cc: 'R-help at lists.R-project.org' > Subject: Re: [R] sourcing code and importing data;

Dear all, I would like to know if there is a R package performing model identification? thank you! -- View this message in context: http://r.789695.n4.nabble.com/R-package-to-identify-model-tp2529525p2529525.html Sent from the R help mailing list archive at Nabble.com.

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

My name is Giovanna and I am a PhD student in Norway. I am a beginner with statistics and R, hence my ignorance. Apologies from now..... I have been collecting data on time performances of 5 subjects using a 1:3 scale tower yarder. The task was consisting in yarding 5 small logs placed on permanently marked course. Four subjects had different previous experiences (None, Some) and the fifth was a

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

I am trying to use Levene's test (of package car), but I do not understand quite well how to use it. '?levene.test' does not unfortunately provide any example. My data are in a data frame and correspond to 1 factor plus response. Could someone please give me an example about how to use the command levene.test(y, group) Thanks in advance, marta -- View this message in

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]]

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 Mariano, See the function leveneTest() in the car package. I hope that this helps, John ----------------------------- John Fox, Professor Emeritus McMaster University Hamilton, Ontario, Canada Web: socialsciences.mcmaster.ca/jfox/ > -----Original Message----- > From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of Marcelo > Mariano Silva > Sent: Monday, January

Hi. I use Samba 3.0.2-29 on Server S7. In our network is a W2K Server named S4 running in Native Mode, Domain Name hel.lan. I tried to join the S4-Domain hel.lan. s7:~ # kinit Administrator@HEL.LAN Administrator@HEL.LAN's Password: s7:~ # net ads join [2004/02/27 08:20:54, 0] libads/ldap.c:ads_add_machine_acct(1006) Host account for s7 already exists - modifying old account Using short

Have you locked at samba-3.0.2a/source/nsswitch directory ? Normally the pam modules and nss libs are there, you need manually copy that to /lib/security (Debian system. maybe different in your distribution) Also remember to run ldconfig after copy the files to the lib directory. Make sure that you /etc/pam.d/login is, some like that: passwd: winbind files shadow: files group: