similar to: PXE in wonderland

Hi, my client pc hangs on pxelinux before starting to fetch the linux kernel. It hangs after printing the ip information row. No traffic is observed at this point on the network. The pxelinux is transferred to the client through a tftp server and with no problems. What options do I have to proceed from this point and try to find out where the problem is? Thanks, Firas. -- Firas Swidan, PhD

Hi, I can not comprehend the linear fitting results of polynoms. For example, given the following data (representing y = x^2): > x <- 1:3 > y <- c(1, 4, 9) performing a linear fit > f <- lm(y ~ poly(x, 2)) gives weird coefficients: > coefficients(f) (Intercept) poly(x, 2)1 poly(x, 2)2 4.6666667 5.6568542 0.8164966 However the fitted() result makes sense: >

Hi, I am having difficulties in finding ways to analyse scatter plots and quantitatively differentiate between them. Since this is best demonstrated by a figure, I have attached one with 4 subfigures (a)-(d). Qualitatively (and I hope you would agree with me), sub-figures (a), (b), and (d) seem to represent uniform 2d scatters. It is hard for me to quantify it, but it seems as if the envelopes

Hi, R is having the following weird behavior and I am not sure if that is a feature or a bug: I am working on the following "3D" array: > bIm , , 1 [,1] [1,] TRUE [2,] TRUE [3,] TRUE [4,] TRUE [5,] TRUE > class(bIm) [1] "array" > dim(bIm) [1] 5 1 1 When I try to get the first 2D subarray, the whole thing folds into a vector: > bIm[,,1] [1] TRUE TRUE TRUE

Hi, I am experiencing a long delay when using dataframes inside loops and was wordering if this is a bug or not. Example code: > st <- rep(1,100000) > ed <- rep(2,100000) > for(i in 1:length(st)) st[i] <- ed[i] # works fine > df <- data.frame(start=st,end=ed) > for(i in 1:dim(df)[1]) df[i,1] <- df[i,2] #takes for ever R: R 2.0.0 (2004-10-04) OS: Linux, Fedora Core 2

Hi, I have a small R question: how to print a single "\" character? I have the following results: > print("\") does not work > print("\\") [1] "\\" I need to make the following substitution as well, but it does not work either: > sub("_","\_","g_g") [1] "g_g" Thanks in advance, Firas.

Hi, I am using the following command to print to a file (I omitted the file details): cat( paste( paste(orientation, start, end, names,"\n"), paste(start, end, "exon\n"), sep="")) where "orientation" and "names" are character vectors and "start" and "end" are integer vectors. The problem is that R coerce the integer vectors

Hi, I am having a problem with a very slow indexing and sub-sectioning of a 3d array: > dim(arr) [1] 245 175 150 For each point in the array, I am trying to calculate the mean of the values in its surrounding: mean( arr[ (i - radius):(i + radius), (j - radius):(j + radius), (k - radius):(k + radius)] ) Putting that code in 3

Hi, I was wondering if anyone is aware of an R interface to ImageMagick (www.imagemagick.org)? Since R does not support a lot of image processing functions, having such an interface could be very useful. Alternatively, ImageMagick has a couple of different interfaces (including to C and C++). I was wondering if one can use these to call ImageMagick functions from R. I am posting a similar

Hi, I have two (different types of) measurements, say X and Y, resulting from the same set of experiments. So X and Y are paired: (x_1, y_1), (x_2, y_2), ... I am trying to calculate the standard deviation of Y with respect to X. In other words, in terms of the scatter plot of X and Y, I would like to divide it into bins along the X-axis and for each bin calculate the standard deviation along

Dear I hope you are wery well when read this e-mail.My name is Firas ALSHAWY and I am a Phd student in the high Institute of marine research - tishreen university- Syria I would like to want some help my in my research, I have data ( length - weight - gonad weight - fishing mortality - natural mortality - the number of fish-temperature of water, maximum age ) , I would like to use the package (

Hi all, I am a new R- user and I am going through the R-manuals, but I could not find an answer for my question. I am confused about when to use the GAM package and when to use the MGCV package?? My Model is a GAM model of continuous outcome and many non-linear continuous predictors (using the "s" function) as well as categorical predictors. Thanks in advance for your help and

Hello! ^_^ I have a problem with a game server. The game is for windows, you know, but I have ubuntu on my computer. So, I installed Wine to be able to run the game. But actually.... I'm not able at all! Anyway, can anybody tell me how to run it? It's a file .exe I installed the game but I can't start it! When user agreement appears, I click on "agree" and then it says

Online games can be a great resource. When you look online, you met many sources that provide maximum enjoyment for the players. No matter what kind of game you want, if you're doing online research, you need a different game options that suits your needs and interests. Most online games that are available to play at that time. Also, do not need any additional software or tools to play on your

Hey, I want to change the default "shift" key to fall into the syslinux shell to something else but wasn't able to find the code where this is done. Can someone point me to this? thanks. Ram

Hi All. I'am using Asterisk with SER. I can make call between two internal VoIP gateways or from na internal to external VoIP gateway. But when I get a external call, this call hang ups 5 seconds after and I reveive the following messages *CLI> -- Executing Dial("SIP/16008-3d17", "SIP/16007&SIP/16006|20|tr") in new stack -- Called 16007 -- Called 16006

Hi R users, I'd like to draw a nomogram using a competing-risks regression (crr function in R), rather than a cox regression. However, the nomogram function provided in the Design package is not good for this purpose. Do you have any suggestion. I really appreciate your help Many thanks F.Abdollah, MD San-Raffele hospital Milan, Italy -- View this message in context:

Hi all, I've got some insanity with mounting an NFS share that before reloading my workstation afresh worked perfectly, but now refuses to mount. Actually there are two servers with shares mounted. (1) Mandrake 10.0 file server - two shares - mount perfectly (2) Fedora Core 3 - one share - can't mount to save my life! My workstation is CentOS 4. I reloaded it to get rid of the FC3

PXELINUX 3.85 pre13-1-gee43a6e* Copyright (C) 1994-2010 H. Peter Anvin et al !PXE entry point found (we hope) at 9F00:0680 via plan A UNDI code segment at 9F00 len 0AB0 UNDI data segment at 9E00 len 1000 Getting cached packet 01 02 03 My IP address seems to be C0A80168 192.168.1.104 ip=192.168.1.104:192.168.1.99:192.168.1.1:255.255.255.0 TFTP prefix: Trying to load:

I have literally beat my brains out trying to get my XP machine to talk to my samba server on my linux machine. MY PROBLEM: The samba server (version 2.2.7a) is running on Redhat Linux 9.0. I can successfully connect to the XP machine and copy files from the XP machine to my Linux machine. But I cannot access my linux box from my XP machine (The samba server shows up in the browse list on