similar to: Creating file names.

Hi: I'm loading in students test scores with: > abntest <- read.table("scores.txt") if I type: >abntest I get ALL the values. I want to be able to filter it by various things such as: if( abntesr > 90) Print abntest; and other logical operators. I'm sure this is simple for someone experienced. Thanks, Gregg Allen

Dear Sir or Madam: This is an extension to a earlier post, about looping through several thousand files, and testing student's models against a different data-set, called rclnow, for "recall now". The problem is, that the instructor never specified to the students, what they should name their "lm" object. So what they created was: "arbitrary variable name"

Thanks to everyone who helped me when I was totally clueless. Now I'm only partially clueless, and in writing functions, which is major progress. This is a function that is a major improvement over which I was using MS Excel for: function() { files <- list.files(pattern="ABN*") # All the models start with the letters ABN for( i in 1:length(files)) # loop through the

Hello! I'm using Mac OS X 10.4.11 on a G4. I use the "R" command, straight from a terminal, because the "GUI" is slower, and I've never liked GUIs anyway. I tried to set up my environment to use the vi editor, but it always tries to save it in wierd things like this: "/private/tmp/RtmpWIhhuo/41a7" 13L, 161C written Sure I can "cp" it from that

Dear R-Community: I am assisting a community college instructor in an introductory statistics class. He has asked me to do this: Read in a file, of filenames, line by line: Student_models.txt : (contains 1500+ filenames) ________________________ Experiment_name_student_name_date_time_Model_number_etc_etc Another_file_name_with_similar_info_as_above And_another And_another_one

Hi: I have an array of measurements, that I've been doing linear regression model and AI models on. Because there are many errors and the values are "ill-formed" I would like to copy the array, but replace each value with the PERCENTILE of that value, in the original array. i.e. mesments$V1: 9, 77, -1 would become: mesmentsCopy$V1: 50, 100, 0 The actual array has many more

As part of my work, I am trying to append matrices onto data frames. Naively I assumed that when rbinding a data.frame and matrix, the matrix would be coerced and appended, keeping the names from the data frame. Clearly, I am not fully understanding the process by which rbind works. Example code: > A<-data.frame(1,1,1); names(A)=letters[1:3] ; B<-matrix(0,2,3) > rbind(A,B)

I''ve got quite the ActiveRecord challenge, any help would be appreciated. In my current project Companies can have many reviews. class Company < ActiveRecord::Base has_many :reviews, :as => :reviewable end However, my company table, I have two different IDs to identify my company. id - This is the typical id we use for normal stuff other_company_id - This is the id we use

Peter, I am trying to get memdisk to work with grub and have run into a problem. Grub loads memdisk into the 0x9000 segment and then starts it at location 0x90200. I run into problems in the first printf statement. It turns out that printf uses a switch statement that compiles into a jump table. When I reach this jump table, I believe the code is jumping into hyperspace due to the jump table

Hey friends, I need a little assistance getting one of my applications running on OSX. I am able to install everything, and get my application running, but when I try to store an object in the session in one of my apps, the session object doesn''t get stored. I tried running webrick, and I tried running under lighttpd. I tried running a regular session store, and a mysql

Please help, I have an application I switched over to UTF-8, but I am unable to decode URLs with unicode characters in them properly. For instance, if I have "item=Pur%E9ed" as a parameter in my url, when it''s decoded by rails, it returns "Pur?ed" and not "Pur?ed". Is there an easy way to fix my controller to accept these characters properly?

Does anyone out there have any thoughts on the type of load common DTrace scripts would cause on a system if run 24x7? I know "common DTrace scripts" and their underlining probe calls a vague statement. So for the lack of a common and establish set of scripts in the OS, I''ll use the most popular right for my question...the DTraceToolkit from Brendan Gregg. Which by the

Please help, Does anyone know how to override the Mongrel request URI limits built in? I know it was set at a 512 byte limit, but my application will not work with this in place. Why do I need a larger limit? I''ve written a rails application that uses a bookmarklet to send large amounts of data from site to site. The only way to do this is (and keep it cross browser

Hi, Not sure if anyone will be intersted but I have put together an install guide for Asterisk on RedHat 9.. Its nothing special but it may be of use to the newbies.. Like me.. If you would like a copy let me know and I will send it to you.. later.. -- ______________________________________________ http://www.linuxmail.org/ Now with e-mail forwarding for only US$5.95/yr Powered by Outblaze

This came up as an RFE during the conference (I believe it''s been logged as "4012008: brendan() action needed for DTrace Toolkit".) As everyone here is aware, DTrace is not quite as user friendly as it could be. For the uninitiated, it can be confusing to run a DTrace script and not see the expected output. Brendan Gregg has addressed this in the DTrace Toolkit[1] by

Hi, What is the required size of the echo residue buffer in speex_echo_cancel function? The mdf.c source would suggest that it's frame_size + 1, while preprocessor.c source claims it's frame_size. Bug? Or am I missing something? I am using 1.2beta1. Thanks, Gregg

Hey guys, I wanted to share with you guys a detailed tutorial I just finished this weekend for using Acts_As_Ferret. http://www.railsenvy.com/2007/2/19/acts-as-ferret-tutorial I started using Ferret and Acts_As_Ferret a few weeks ago, and I learned so much that I wanted to give back to the community by writing up a helpful tutorial that covers all the key topics in one

On Solaris 10 If I install using ZFS root on only one drive is there a way to add another drive as a mirror later? Sorry if this was discussed already. I searched the archives and couldn''t find the answer. Thank you.

Hi all, I have a 5 drive RAIDZ volume with data that I''d like to recover. The long story runs roughly: 1) The volume was running fine under FreeBSD on motherboard SATA controllers. 2) Two drives were moved to a HP P411 SAS/SATA controller 3) I *think* the HP controllers wrote some volume information to the end of each disk (hence no more ZFS labels 2,3) 4) In its "auto

I have Rails 1.1.2, ruby 1.8.4 and gentoo linux running kernel 2.6.15. Here are the errors: gregg@gregg2 ~/user/DMS $ rake test (in /home/gregg/user/DMS) /usr/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/ ordered_options.rb:2: warning: method redefined; discarding old []= /usr/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/ ordered_options.rb:11: warning: method