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Dear Friends. I found something very puzzling with constOptim(). When I change the parameters for ConstrOptim, the error messages do not seem to be consistent with each other: > constrOptim(c(0.5,0.3,0.5), f=fit.error, gr=fit.error.grr, ui=ui,ci=ci) Error in constrOptim(c(0.5, 0.3, 0.5), f = fit.error, gr = fit.error.grr, : initial value not feasible > constrOptim(c(0.5,0.9,0.5),

Dear friends. I use ConstrOptim( ) and got error message "initial value not available". My understanding of "initial value not available" is that one of the following 3 cases happens: 1.The objective function is not well defined at the point of the initial value. 2. The differentiation of the objective function is not well defined at the point of the initial value. 3. The

Hello All, I am working on graph object using IGRAPH package wanted to do Bonacich Power. This is my graph object. The file 'Graph.RData' (4.2 MB) is available for download at http://dropbox.unl.edu/uploads/20090424/cfe4fcb854bb17f2/Graph.RData Graph size Vertices: 20984 Edges: 326033 Directed: FALSE No graph attributes. Vertex attributes: name. No edge attributes. When I use

Pursuant to a prior "on topic" thread (http://tolstoy.newcastle.edu.au/R/e4/help/08/07/17192.html ) where I found I could not use AOV to perform an anova on my large data set, I'm now trying to code the analysis "by hand" so to speak. However, as demonstrated below, when comparing my attempt to aov() using a smaller data set, I seem to betray some sort of

I have what I'm sure will turn out to be straightforward. I want to store the results of a loop for some operations from a patterned vector. For example, the following doesn't give what I would hope for ss <- c(2,3,9) results <- numeric(length(ss)) for (i in seq(along=ss)){ results[i] <- i + 1 } The following does give what I expect, but creates a vector of length 9. ss

I am generating an array of similar plots using the par(mfrow=c(3,3)) method. Everything works fine except the plot only puts y-axis tick marks on cells in column one and x-axis tick marks on cells in row three. I would like tick marks on both the x and y axix of all 9 plots in my array. I am generating plots using the following two functions three.by.three.plot <- function(ss) {

hi all another simple question. i've written a dummy program so that you get the concept. (the code could be simplfied such that there are no loops. but lets leave the loops in for now.) z1<-function(w) { for (i in 1:w) { set.seed(i+6) ss<-0 for (j in 1:5) { set.seed(j+1+(i-1)*6) r<-rnorm(1) ss<-ss+r } list(ss=ss) } } check.1<-z1(3) check.1 the results is: $ss [1]

https://bugs.freedesktop.org/show_bug.cgi?id=58378 --- Comment #55 from Andreas Loew <awl1 at gmx.net> --- > > [aloew at aloew-lap envytools-master]$ ./nva/nvapoke 10200c 10 > > WARN: Can't probe 0000:01:00.0 > > PCI init failure! > You need to run these as root. Ouch - sorry - could have indeed had this idea myself... :-( Here are the results as root: [aloew at

https://bugs.freedesktop.org/show_bug.cgi?id=58378 --- Comment #57 from Ilia Mirkin <imirkin at alum.mit.edu> --- (In reply to comment #55) > > > [aloew at aloew-lap envytools-master]$ ./nva/nvapoke 10200c 10 > > > WARN: Can't probe 0000:01:00.0 > > > PCI init failure! > > > You need to run these as root. > > Ouch - sorry - could have indeed

> > Hello All, > Please help me with this problem.I have been having this problem for over a month now and I could not find any information.I later realised that error is with MATRIX package. I am working on graph object using IGRAPH version 0.5.2-2 package & wanted to do Bonacich Power. What I have is undirected GRAPH. This is my graph object. The file 'Bonacich

Not sure if there is an R way to do this or a regular express way, but here is what I am trying to do. I've got lots of data where the format is HH:MM:SS, but I need to format it like HH:MM:00, i.e. round the second down to zero. What is the best way to do this? Thanks again. Jason

Hi, We're encountering severe load problems associated with multiple smbd processes running per user. As an example below, this user has only five files open yet many smbd's running. Is there a reason for this occurring? I've been experimenting with file locking etc to try and get around it. Thanks Tim tim@hostname:~> smbstatus -u yunjeng -S INFO: Debug class al...

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I have a huge matrix and need to delete certain rows. What I need to do is: 1.In each row, calculate the sum of jth column and (J+2)th column 2. If the sum is greater than 2 then that row needs to be deleted. I have a sample matrix and my codes here. It does remove some rows but when it does, it skips the next row and each time it deletes a row, the dimension changes so it gets out of bound. I

I'm upgrading my primary server from RH 7.2 to CentOS-4.3.ServerCD. I REALLY like the ServerCD. Who needs all the fluff that comes with a standard distro? If I want a system-config-gooey I can run Xnest [1] and ssh -X from my laptop. Anyway I have two questions: 1) How can I collectively stop all the NFS, portmap, whatever? I'm hoping it can be manipulated as a group because occationally

I have Cent OS 5.1 I also have http://phpsysinfo.sourceforge.net/ I have asterisk running . Now when I look at System Information , I see that "Physical Memory" keep increasing and at one point it reaches 96%. Then my sever get hang and then I have to restart it. I have 4 GB RAM. Processors 2 Model Intel(R) Core(TM)2 Duo CPU E7200 @ 2.53GHz CPU Speed 2.53 GHz Cache Size 3.00 MB

Hi all, I have to calculate an expression using acos -function. A strange result of acos appears *1. case with error* ss <- sin(10.74*pi/180)**2 +(cos(10.74*pi/180)*cos(10.74*pi/180)*cos(0*pi/180)) ss acos(ss) [1] NaN Warning message: NaNs produced in: acos(ss) *2. case without error* ss <- sin(10.7*pi/180)**2 +(cos(10.7*pi/180)*cos(10.7*pi/180)*cos(0*pi/180)) ss acos(ss)

I've written a function that takes some input data output from a simulation model and creates some graphs. It's not very complicated code, and it works perfectly fine if I just run the code as is. But I have converted it into a function so we call it externally, and when I try to source the code to test the function, I get the error message "variable names are limited to 256

>Submitter-Id: current-users >Originator: Alex Vasylenko >Organization: >Confidential: no >Synopsis: [patch] net/rsync: problems in client name lookup code >Severity: non-critical >Priority: low >Category: ports >Class: sw-bug >Release: FreeBSD 4.8-RELEASE-p16 i386 >Environment: System: FreeBSD 4.8-RELEASE-p16 >Description: rsync does reverse name

> -----Ursprüngliche Nachricht----- > Von: Prof Brian D Ripley > Gesendet am: Tuesday, March 07, 2000 11:30 AM > An: dtrenkler@nts6.oec.uni-osnabrueck.de > Cc: r-devel@stat.math.ethz.ch; R-bugs@biostat.ku.dk > Betreff: Re: [Rd] R-crash using cut-and-paste (PR#472) > > On Tue, 7 Mar 2000 dtrenkler@nts6.oec.uni-osnabrueck.de wrote: > > > Dear R-Team, > >