similar to: subsetting data by specified observation number

Hi fellow R users, I am desperately hoping there is an easy way to do this in R. Say I have three functions: f(x) = x^2 f(y) = 2y^2 f(z) = 3z^2 constrained such that x+y+z=c (let c=1 for simplicity). I want to find the values of x,y,z that will minimize f(x) + f(y) + f(z). I know I can use the optim function when there is only one function, but don't know how to set it up when there are

Hi members, I am a LLVM newbee. I am working in path profiling. I got an error message when reading the path profile data I made a sample source named foo.c The command chain to make llvm path profiling as follows: 1. Compile to LLVM Bitcode llvm-gcc –emit-llvm foo.c –c –o foo.bc 2. Insert Path Instruments opt –insert-path-profiling foo.bc –o foo_path.bc 3. Link with profile

Dear Members, I am working on path profiling, but command llvm-prof cannot read path profile info. Making llvm-prof to be able to read PP info is so wonderful. But I cannot find the format of PP. Could anyone give me the document of path profile info format so that I could modify llvm-prof. Thank you in advance Linh Ho -------------- next part -------------- An HTML attachment was

Hi guys, I'd like to thank you ahead of time for any help that you can offer me. I'm kind of stuck trying to do this. I have a data frame with dates and values (note: only two columns shown): head(test) date value stop 1 01/02/05 100 12/01/07 2 07/16/05 200 12/01/07 3 12/20/05 150 12/01/07 4 04/01/06 250 12/01/07 5

Hi, Here is a link to my document on PP. On page 4, it has the format of the path profile. http://lists.cs.uiuc.edu/pipermail/llvmdev/attachments/20100823/db8abfb3/attachment-0001.pdf Cheers, Adam On 2011-05-22, at 9:31 PM, Linh Ho Tran wrote: > Dear Members, > > I am working on path profiling, but command llvm-prof cannot read path profile info. Making llvm-prof to be able to

Hi guys, I've spent a few days trying to install Rmpi with no luck. I originally tried using mpich, moved on to mpich2, and then to openmpi. I've gotten the furthest with openmpi, though am still running into this problem and can't figure it out. Can someone help!? Thanks so much in advanced. I'm using an HP Envy laptop with Ubuntu 12.04. Output is below, with the error at the

The Drupal project announced several security vulnerabilities for the 4.7.x and 5.x releases of the Drupal package. These effect two current ports: www/drupal4 and www/drupal5. The following are the security advisories that were posted: 4.7.x: * DRUPAL-SA-2007-024: http://drupal.org/node/184315 * DRUPAL-SA-2007-026: http://drupal.org/node/184320 * DRUPAL-SA-2007-030:

Hi All, I use llvm version 2.9. llvm-prof does not support to read path profiling info. So could I use any way else to read path profiling info? Thanks Linh ________________________________ From: Andreas Neustifter <andreas.neustifter at gmail.com> To: Andrew Trick <atrick at apple.com> Cc: Linh Ho Tran <hotranlinh at yahoo.com>; "llvmdev at cs.uiuc.edu Mailing

We have installed rails 1.1.2 and Ruby 1.8.4 on solaris. When we attempt to run the initial migration we get the following error: Mysql::Error: Lost connection to MySQL server during query: SELECT version FROM schema_info /web/server/pkgs/ruby-1.8.4/lib/ruby/gems/1.8/gems/activerecord-1.14.2/lib/active_record/connection_adapters/abstract_adapter.rb:120:in `log''

I'm trying to test a method of identifying individuals (birds) based on measured data (their calls). I have test data from known individual birds, and I am using the Mclust package to see if the program can correctly identify which calls come from different birds. So far, mclust has correctly ID'd the number of birds in the test data set (i.e., the correct # of clusters). However I

Hi All! I was involved in the LLVM profiling business during late 2009 and early 2010 but I was not working on the path profiling but the "regular" profiling code. So I'm only guessing in case there is not other answer. On 9 May 2011 20:19, Andrew Trick <atrick at apple.com> wrote: > > On May 9, 2011, at 3:36 AM, Linh Ho Tran wrote: > > [...] > > The error

Hi friends, i am using csv export on my application. in my view file code is <%- headers = ["Transaction ID", "Activity ID", "Product Name","Customer Name", "Ticket code"] -%> <%= CSV.generate_line(headers).strip %> <%if !@trans.nil? && @trans.length > 0 %> <% @trans.each do |tran|%> <% if

Hello, I am trying to read in elements out of a very large binary file ... the total file is 4 gigs. I want to select rows out of the file, and the current procedure I run works but is prohibitively slow (takes more than a day to run and still won't complete). Is there any faster way to accomplish this? My current procedure looks like this: readHH <- function(file_name,

Hello, I am having a problem specifying the correlation structure in lme which leads to the error: Error in getCovariate.corSpatial(object, data = data) : Cannot have zero distances in "corSpatial". I have specified a grouping variable which is the only fix I could find by searching this error on R-help. ISee the below example. When my samples (tran) - which are transects

I've been trying for weeks to get winbind working with RedHat Linux 8.0. I've got everything setup per the winbind docs on http://www.samba.org/samba/docs/Samba-HOWTO-Collection.html#WINBIND. I've successfully joined my NT4 domain with smbpasswd -j DOMAIN -r PDC -U Administrator. Running wbinfo -u returns my domain user list, as well as wbinfo -g returning my domain groups. getent

I issued this command to join a Linux computer to a Windows 2000 domain /usr/bin/net rpc join, and I got an error message: [2002/11/06 16:04:50, 1] utils/net.c:net_find_server(229) no server to connect to Unable to find a suitable server [2002/11/06 16:04:53, 1] utils/net.c:net_find_server(229) no server to connect to Unable to find a suitable server ===================== To create the

Hi, What's one way to convert an integer to a string with preceding 0's? such that '13' becomes '00000000013' to be put into a string I've tried formatC, but they removes all the zeros and replace it with blanks Thanks -- Regards, Anh Tran [[alternative HTML version deleted]]

Suppose this is my list of transactions: set.seed(200) tran=random.transactions(100,3) inspect(tran) items transactionID 1 {item80} trans1 2 {item8, item20} trans2 3 {item28} trans3 I want to get the 'transpose' of the data, i.e. transactionID items 1 {trans2} item8 2 {trans2} item20 3 {trans3} item28 4 {trans1} item80 I

Hi all, So I think I have seen some similar questions to mine when I searched the archives, but have not seen any concrete answers and was wondering if any one could help. I have been trying to use R's aov() function to analyze my data. I have a 3 x 4 x 2 repeated measures design. All of the IVs are within subjects. I do also have missing values (unequal N), as I have to remove

Hello, I am working with two datasets with ~5,200 observations. Apparently, neither the correlog function (ncf package) nor the mantel function (ecodist package) can handle these datasets. Does anyone have any experience about the maximum number of observations these functions can handle? I am considering partitioning them into smaller subsets. This would not be an ideal