similar to: short-hand to avoid use of length() in subsetting vectors?

Hi all --- I note that the column name of the first column in a dataframe does not necessarily get passed on when using cbind (example below)? I'm looking for help in clarifying why this behavior occurs, and how I can get all col names, including the first, passed on to the result?while I suspect it's obvious and documented to the cognoscenti, it's puzzling me? Many thanks for any

(1) ...need to speed up a monte-carlo sampling...any suggestions about how I can get R to use all 8 cores of a mac pro would be most useful and very appreciated... (2) spent the last few hours trying to get pnmath to compile under os- x 10.5.4... using gcc version 4.2.1 (Apple Inc. build 5553) as downloaded from CRAN, xcode 3.0... ...xcode 3.1 installed over top of above after

Dear All, This is a simple question, but I'm stumped about the simplest way to search a list object such as the following: This randomish snippet: n <- c(round(runif(round(runif(1,1,10),0),1,10),0)) alist <- new("list") for (i in seq_along(n)) { alist[[i]] <- c(round(runif(round(runif(1,1,10),0),1,10),0)) } names(alist) <- sample(letters[1:length(n)]) rm(n);c(alist)

I have been happily using NUT to monitor a couple of Eaton UPS. These are independent UPSs, each driving one "leg" of the power in our data center. In this scenario, I've told my clients they need to have one UPS working and to shutdown when the last UPS reaches critical battery. I have recently learned that our power arrangement will be changing to a parallel-fed/redundant

I am attempting to use rsync to copy a large filesystem from an HP-UX server to a Linux server with more than enough filespace. This operation fails. A small directory from the same HP-UX server can be transfered just as expected. The HP-UX server is the source. It has 1Gb RAM - the output of bdf for the volume the source files is on is: Filesystem kbytes used avail %used Mounted

Hey All, I'am using pxelinux to try and boot a 200meg uncompressed (approx 50 compressed) ramdisk onto a machine with 512meg of ram. It looks as though I'am running out of memory (attempt to access beyond end of device error). Is there a limit on what we put for ramdisk_size? Or Is there other limitations? thanks -- Jeff Geddes, BSc(UNB) Computer Systems Specialist University of

Currently I'am using samba for file sharing. My smb.conf file is basically setup as default with a few minor changes. Therefore, my samba server is not part of a domain. Right now users can map the samba shares with windows XP... With this type of setup is it possible for them to change there smbpasswd using ctrl-alt-del? If so any examples or hints on how to set this up would be great.

when we have validate_presence_of :name in the model and then when we put in the create action that we re-render ''new'', then the form_for will populate the fields, and error_messages_for ''story'' will have the correct error message. this is really great, and and the same time, this looks like magic... i found that many books don''t explain how the magic

Hey all, I'am able to use pxelinux to successfully boot a particular kernel and image on various IBM PC's ex. 6287-41U and 6591-34U. However, using the same setup (ie. dhcp, tftp, pxelinux.0, pxelinux.cfg, networkcard, bootrom, ram memory) on an IBM 6282-73U my kernel and image decompress fine but I'am getting a... Kernel Panic: VFS: Unable to mount root fs on 01:01 I realize

Hello ! Maybe passing argument root=/dev/ram0 or root=/dev/rd/0 would help ? I use isolinux and it works in the isolinux.cfg sylvain > Message: 3 > Date: Fri, 13 Sep 2002 14:11:38 -0300 (ADT) > From: Geddes <jgeddes at unb.ca> > To: syslinux at zytor.com > Subject: [syslinux] Unable to mount root fs > > > Hey all, > > I'am able to use pxelinux to

If you are attending the MySQL User Conference 2006, you are encouraged to come attend my session about Applied Ruby on Rails and AJAX. The session information is as follows: Applied Ruby on Rails and AJAX Farhan Mashraqi Track: LAMP, Community Projects Date: Thursday, April 27 Time: 2:20pm - 3:05pm Location: Ballroom B Adoppt (http://adoppt.com) is a fully

I have two tables: table_1: tab1_id, other_id table_2: id, tab2_id, something_else I would like to specify a has_one mapping from table_1 to table_2 but specifying that the join is based on (table_2.tab2_id = table_1.other_id). I am half way there with: class Table1 < ActiveRecord::Base set_table_name "table_1" set_primary_key "tab1_id" has_one :Table2, :class_name

Let's say I have the following formula: a.formula <- x ~ y + z I want to extract the left and right-hand sides of the function so that I have two character vectors like the ones you would create using the following assignments: left.hand.side <- "x" right.hand.side <- c("y", "z") One way to do this follows: left.hand.side <-

Hello, I am using the package arules to generate association rules. I would like to restrict the rules so that in the left-hand side there's only one particular element, let's call it "potatoe". If I do this: rules <- apriori(dtm.mat, parameter = list(sup = 0.4, conf = 0.9,target="rules"), appearance = list(lhs = c("potatoe"))) I get "potatoe"

Hi All, I use arules library, and try to create an association rules for this transaction file: a,c,f,3,4,5 b,e,1,2,4 a,c,e,f,1,3,4,5 d,5 b,c,e,f,1,2,3,4 a,c,e,f,1,3,4,5 b,c,e,f,1,3,4 b,e,1,2,4 a,c,e,f,1,3,4,5 a,b,c,e,f,1,3,4 a,c,d,f,3,4,5 I want to get the rule such: {c,e,f}=> {3,4,5} I used this command: ar=apriori(tr, parameter=list(support=.4, confidence=0.8, maxlen=11), appearance

Is there a way to get subscripts and superscripts on the left hand side of a symbol? For example, oC or oF (degree Celsius or Fahrenheit) TIA Partha -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the

Hi All, I was looking into using LLVM with C++. Currently there is almost no C++ support (C support only). Just wondering who is the person to contact so I could help out with C++ extension for LLVM. With Best Regards KaZ Department of Mathematics and Computing Imperial College London

On 2009-01-30 18:19, Kasra wrote: > Hi All, > > I was looking into using LLVM with C++. Currently there is almost no C++ support (C support only). > LLVM is written in C++, has a C++ API, and llvm-gcc frontend can compile C++ programs. What exactly is the C++ support you are missing? Best regards, --Edwin

Hi Qiuping yi, > I am a new novice of LLVM, and I want know how to get the left-hand > operand of an instruction? > > For example: > how to get the %temp2 operand in the next instruction: > > %temp2 = malloc i8, i32 %n there is no left-hand side, temp2 is just a name for the instruction. Since the LLVM IR is in SSA form, registers have exactly one definition, and thus there

Hi Duncan, I have catched your reply and solved the problem. Thank you for the elaborate reply. Best Regards! 2010/4/6 Duncan Sands <baldrick at free.fr> > Hi increaseing, please ask on the list rather than writing to me directly. > That way others can answer, and the discussion is archived for the benefit > of people with the same question in the future. > > Best