search for: wittmann

...es of normals. Are there any other packages out that that can handle mixtures of gammas or other exponentials? Additionally, are there any packages out there that can fit bimodal distributions without mixtures? i.e., Cobb et al. 1983 using moment recursion relations? Thank you! mw Marion Wittmann, Ph.D. candidate Environmental Science & Management University of California Santa Barbara, CA 93106-5131 Lab: (805) 893 5890 Mobile: (805) 448 8259 Email: <mailto:mwittmann@bren.ucsb.edu> mwittmann@bren.ucsb.edu Web: <http://www.bren.ucsb.edu/~mwittmann> www.bren.ucsb.edu/~mwit...

...live", zero.print = ".",maxsize = 5.0, key.entries = 4*(1:6),col=c(0,3)) a2 = bubble(handcore, "Dead", maxsize = 5.0, main = "", key.entries = 5*(0:10),col=c(0,4)) print(b1, more = TRUE) print(b2, more = FALSE) Thanks in advance for your help. mw Marion Wittmann, Ph.D. Tahoe Environmental Research Center University of California Davis

Dear R-users, i have a simple problem maybe, but i don't see the solution. i want to find the entry-wise closest element of an vector compared with another. ind1<-c(1,4,10) ind2<-c(3,5,11) for (i in length(ind2):1) { print(which.min(abs(ind1-ind2[i]))) } for ind2[3] it should be ind1[3] 10, for ind2[2] it should be ind1[2] 4 and for ind2[1] it should be ind1[1] 1. but with the

...of trips taken (as indicated by the number in the first column)...i.e., if 1,1 indicates 4 trips, I want to replicate row 1 four times, and do this for each entry of column 1. I have played with rep command with little luck. Can anyone help? This is probably very simple. Thank you, mw Marion Wittmann, Ph.D. candidate Environmental Science and Management University of California Santa Barbara, CA 93106-5131

Dear R useRs, with the following piece of code i try to find the first value which can be calculated without warnings `test` <- function(a) { repeat { ## hide warnings suppressWarnings(log(a)) if (exists("last.warning", envir = .GlobalEnv)) { a <- a + 0.1 ## clear existing warnings rm("last.warning", envir = .GlobalEnv) }

...bug tracking information. please excuse me if my problem report should not meet your standards, but i want to direct your attention to the following: http://koffein.org/av/rsync-bugreport/ problem report for rsync 2.6.9 on linux/IA32, 09 Dec 2006 Herwig Wittmann - Initials At Geizhals .at ******************************************************* "chrooted rsync gets stuck in huge maildirs, retval 12" ******************************************************* (i'm not sure wheter an chroot() mechanism is invoked in my...

Assuming I have a Rails application running in the root folder of my domain. Now I want to put a clients'' app in a subfolder on that domain for review (or at least it *should* look like a subfolder). Can this be accomplished via .htaccess? It should not interfere with the Rails routing in the root folder. If .htaccess is the way, please help me out here, I suck at mod_rewrite... --

...stimate'...." So it seems that this function is only finding a local minimum, not necessarily a global minimum. Does anyone have a suggestion or recommendation for an alternative package or function within R that will perform this minimization task more globally? Thank you, Marion Wittmann [[alternative HTML version deleted]]

...tes/flexmix/flexmix-intro.pdf Karen --- Karen M. Green, Ph.D. Karen.Green@sanofi-aventis.com Research Investigator Drug Design Group Sanofi Aventis Pharmaceuticals -----Original Message----- From: r-help-bounces@r-project.org [mailto:r-help-bounces@r-project.org] On Behalf Of Marion Wittmann Sent: Monday, November 19, 2007 2:57 PM To: r-help@r-project.org Subject: [R] mulitmodal distributions Hello, I see that "mclust" is a pacakge that handles fitting mixtures of normals. Are there any other packages out that that can handle mixtures of gammas or other exponentials?...

...t the existing labels. I have also tried (axes=FALSE), and then rename new with (labels = "Denver", etc. ), but it seems as though I need to maintain the factor identities, as it give me the error: 'labels' is supplied and not 'at' Any suggestions? Thank you, marion wittmann

Dear R useRs, i wanted to ask if the folded normal destribution (Y = abs(X) with X normal distributed) with density and random number generator is implemented in R or in any R-related package so far? Maybe i can use the non-central chi-square distribution and rchisq(n, df=1, ncp>0) here? Thanks and best regards Andreas

I''d like to set up routes like /<section>/<article>. Using a route like map.connect '':section/:article'' works just fine, but I''ve also got an admin area that is accessed through the route ''admin''. Inside the admin area I''ve got subpages like admin/sections and admin/articles. This is conflicting with the other routes

Hi all, I dunno what I've done wrong, but since I upgraded my Samba 2.2.1a to 2.2.2 (Mandrake 8.0) I can see share called "nobody" in the list of shares on the server. Even I can't open it ( it asks for the password - I used guest, my login, root no success ) I can't seem to understand it. I have no share with this name in the smb.conf so I don't know what does it

Dear R users, i try to integrate lgamma from 0 to Inf. But here i get the message "roundoff error is detected in the extrapolation table", if i use 1.0e120 instead of Inf the computation works, but this is against the suggestion of integrates help information to use Inf explicitly. Using stirlings approximation doesnt bring the solution too. ## Stirlings approximation lgammaApprox

Hi everybody, i'm working on the next version of the CreditMetrics package. So i have the question, are there any functions or packages which have have the functionality to calculate dates with a certain day count convention like act/360 or 30/360? Intensive search in the r-help archive or in the manuals did not bring any solution. thanks everybody for some help. best regards Andreas

...FLXMRglm( family="gaussian")) And I recieve the following error message: *Error in FLXfit(model = model, concomitant = concomitant, control = control, : 1 Log-likelihood: NA I'm not sure how to interpret this error. Any advice would be helpful. Thank you. mw Marion Wittmann, Ph.D. candidate Environmental Science & Management U.C. Santa Barbara Lab: (805) 893 5890 Mobile: (805) 448 8259 Email: <mailto:mwittmann@bren.ucsb.edu> mwittmann@bren.ucsb.edu Web: <http://www.bren.ucsb.edu/~mwittmann> www.bren.ucsb.edu/~mwittmann [[alternative HTML versio...

Dear R useRs, yesterday i updated my system from ubuntu 8.04 to 8.10. I use emacs- snapshot, this is emacs 23.0.60.1 and ess 5.3.8. Before the update i had when starting emacs with an R file an ess-toolbar with little icons to start R or to evaluate a line or a region of my R file, but no this toolbar is lost and i don't know how to get it again. I tried a lot of changes in the ess options

Dear R users, i try to calculate the probabilty to survive a given time by using the estimated survival curve by kaplan meier. What is the right way to do that? as far as is see i cannot use the predict-methods from the survival package? library(survival) set.seed(1) time <- cumsum(rexp(1000)/10) status <- rbinom(1000, 1, 0.5) ## kaplan meier estimates fit <- survfit(Surv(time,

Hi all, i'm currently working on a creditmetrics package which includes functions for computing the credit risk model creditmetrics. I guess it would be finished in a few days. My question now is, does there exist some review process before sending it to ctan or is it reviewed after having sended it? best regards Andreas -- NEU: Jetzt bis zu 16.000 kBit/s! http://www.gmx.net/de/go/dsl

Dear R useRs, i try to integrate the following function for many values "integrand" <- function(z) { return(z * z) } i do this with a for-loop for(i in 2:4) { z <- integrate(integrand, i-1, i)$value cat("z", z, "\n") } to speed up the computation for many values i tried vectors in integrate to do this. vec1<-1:3 vec2<-2:4