similar to: Dovecot Authentication Problem Can't Make it Work

Hello everybody, I use the sweetpotato database included in R package: data(sweetpotato) This dataset contains two variables: yield(continous variable) and virus(factor variable). Due to Levene test is significant I cannot assume homogeneity of variances and I apply Welch test in R instead of one-way ANOVA followed by Tukey posthoc. Nevertheless, the problems come from when I apply posthoc

Monte, For a list of online sources that may be useful, go to http://www.uvm.edu/~dhowell/methods/Websites/Archives.html and check out some of the material referenced there. Clay Helberg's site is particularly helpful. Unfortunately it is virtually impossible to keep links current, so some are likely to be dead--although you can often find them via Google. Dave Howell -- David C. Howell

Dear R News, I am inquiring whether the articles that are published in the 'R News' have undergone a peer-review/refereeing process, for the purpose of reporting the academics publications here at the University of Sydney to the Australian Government. Thank you for your assistance. Regards Glenn Glenn Howell| Faculty Research Assistant FACULTY OF ECONOMICS AND BUSINESS

I am writing a resampling program for multiple regression using lm(). I resample the data 10,000 times, each time extracting the regression coefficients. At present I extract the individual regression coefficients using brg = lm(Newdv~Teach + Exam + Knowledge + Grade + Enroll) bcoef[i,] = brg$coef This works fine. But now I want to extract the t tests on these coefficients. I cannot

Sampling with and without replacement I seem unable to use "replace = F" when I want to sample without replacement. I would think that it comes down to "F is not a legitimate abbreviation for FALSE." except that Dalgaard (p. 118) uses F for FALSE and it works "pairwise.t.test(folate, ventilation, pool.sd = F)" I am having trouble when I try to sample a vector

Hello, I have some patient data for my masters thesis with three groups (n=16, 19 & 20) I have completed compiling the results of 7 tests, for which one of these tests the variances are unequal. I wish to perform an ANOVA between the three groups but for the one test with unequal variance (<0.001 by both bartlett and levene's test) I am not sure what to do. I thought i would run

I have been having problems with using scan(). I searched the archives and found someone with the same problem several years ago, but did not find a solution. I want to prompt the user for input, scan in that input, and then go on to use it as a variable. The simplest version of my program is cat("enter m","\n") m <- scan(n = 1, quiet = T) m If I enter these lines one

Hello all, I know I need to read the manual but I don't even know where I need to look in the manual. I'm haveing a little bit of a problem getting XP to print to my linux printer. I've got the smb.conf file set up to allow xp to access the corect share and it even sees the printer but it apears it doesn't have permision to print to it. What might I need to do to

Hi all, I''ve got a couple of questions regarding the current status of nvidia with Xen, since it is well known that nvidia doesn''t work as smooth at the moment with Xen (comparing to ati). My current goal is to use one nvidia gtx460 card and the onboard intel hd4000 on dom0, and then do passthrough for another nvidia gtx460 to a Windows domU. I know there are patches

Hi all, I have an i7-3770 which has the Intel HD 4000 graphics. I''ve been trying to pass it through to DomU with no success. With a Linux DomU, the i915 module simply will not load because intel_agp is not loaded properly when it cannot find the AGP bridge. ( With a Win7 DomU, it BSODs straight away during the boot with SYSTEM_SERVICE_EXCEPTION. With a WinXP DomU, it got further

Hi, I''m doing VGA passthrough for an ATI (HD 6770) graphics card to a DomU Windows. The passthrough itself is working. However, everytime when I reboot the DomU Windows, the whole machine freezes. I see no error messages from Dom0 kernel or the xen qemu log (or perhaps I haven''t got the most verbose debugging turned on?). Though from what I can tell, the the freeze happens

Hello, I read a book about statistics in psychology. The authors use SPSS. They talk about post hoc tests after ANOVA finds significant effects: - Gabriel's procedure (for equal or slightly different sample sizes) - Hochberg's GT2 (for different sample sizes) - Games-Howell procedure (for populations with unequal variances) I could not find them in R. Do they not exist in R

I've installed Asterisk from the Asterisk @home distribution. Ultimately I will be using Asterisk for voicemail for about 150 users. Calls are (mostly) handled by a legacy PBX although we do have a couple of Cisco 1760 routers that connect a remote office. I've setup a SIP trunk that routes calls from Asterisk to the 1760, and that works fine. I've also configured one of the 1760s to

Hi, When the Dovecot 1.0.rc19 IMAP server encounters X-UID headers with gaps in them, it hangs indefinitely. I've attached a sample mailbox (in mbox format) which repeatably exhibits this behavior. The mbox contains only three messages with the following X-UIDs in order: 774, 785, 787. If I remove the X-UID headers from each message, Dovecot handles the mailbox without any problems. UW-IMAP

I am having difficulty extracting specific results from the model object. The following code shows where I am stuck. I want to run resamplings of a data set. For each I want to extract a particular F for the contrasts. If I run a very simple model (e.g. model1 <- aov(time~group) ) I can get the relevant coefficients, for example, by using "model1$coefficients". That's fine.

Dear R users, I am conducting multiple comparisons among 12 groups (after a significant F-test) that are heteroscedastic (as judged by a significant Levene's test). It seems from the literature that the Games-Howell post-hoc test is the most appropriate for these data - but, I can't seem to locate a function on the R-site or CRAN or the help lists that implements this test in any R

Hi, As Frank M. Howell noticed (and probably other users), the Windows binaries for DCluster I put in my web page are not working... I have compiled the source code again and know it does. Please, download it again, and sorry for the inconvenience. The URL is http://matheron.uv.es/~virgil/Rpackages/DCluster DCluster is a package that implements some methods for the detection of spatial

I'm haveing problems loging onto a win2k profesional machine useing my linux box. No mater what I type I get eronos (acess denied). I made sure the password was corect, enabled full shareing on both the pc and linux box, they are both in the same workgroup, any sugestions ???, thnx Jerry M. Howell II

I've installed Samba 3.0.2 (from the source) on a SuSE 8.2 system with MIT Kerberos 1.3.1 (I uninstalled the Heimdal code) and the OpenLDAP 2.1.27 development libraries installed on it. I want to make this system a domain member of a Win2K native-mode ADS domain but can't get "net ads join" to work. I've run "kinit myid@MYDOMAIN.COM" and I get at ticket, but when

Dear all, I have run a hierarchical log-linear analysis using loglin {stats} and came up with a specific model. loglin returns me the parameter estimates giving me an idea in which direction the observed frequencies deviate from the expected ones for my different factors. To assess the significance of any such effects I would need to calculate the ratio of the log-linear parameter