search for: semesters

...swer. Well, it's a question with a couple parts. Thanks in advance for any direction (partial or complete) that anyone can provide. I have a data frame with three columns: Year, Semester, value1. I want to treat Year and Semester as factors; there are many years, and there are three semesters (Fall, Spring, Summer). First, I would like to be able to plot the data in this frame as Year v. value with one curve for each factor. I have been unable to do this. Is there any built-in R functionality that makes this easy, or do I need to build this by hand (e.g., using the techniques i...

...ster < ActiveRecord::Base has_many :student_semester_records has_many :discipline_records end class DisciplineRecord < ActiveRecord::Base belongs_to :semester end student_semester_record.discipline_records yields this SQL: SELECT discipline_records.* FROM discipline_records INNER JOIN semesters ON discipline_records.semester_id = semesters.id WHERE (semesters.semester_id = 1349) The where clause is invalid. It is using: semesters.semester_id = #{student_semester_record.id} It should be using: semesters.id = #{student_semester_record.semester_id} Am I doing something wrong, is this a...

I have an app with the following models: course belongs_to :semester semester has_many: courses belongs_to :education education has_many :semesters In my old app (rails 1.2.6) I was able to access variables via controller @courses = Course.find(:all) view file: <% for course in @courses %> <%= course.name %> <- this line works <%= course.semester.name %> <- this is now broke <%= course.semester.education.name %&gt...

Dear R-helpers, New to R, I'm in the middle of a project that I'm using to force me learn R. I'm running into some behavior that I don't understand, and I need some advice. In the last week I've gotten some great advice from the list on visualizing my data, and I was hoping people could help me get over another barrier I've encountered to my progress. Before I

I have a data frame that has columns Semester, Student ID (SID), Subject, Grade, Devel (Tor F). Students can have multiple records within a semester. Right now, the columns are not considered factors. I want to do an analysis that would show the number of students who received particular combinations of grades. I also need to distinguish between the two Development levels (they modify classes,

Dear R People: Are your undergraduate students receptive to learning R, as a rule? Most of the time, mine really like it. But this semester, they act as though they are being eaten by rats when learning R. They are not trying at all. Any similar experiences? If anyone has any good ideas, I would be THRILLED to hear them, as I am using R in Summer School. Thanks, Sincerely, Erin Hodgess

Hi R People! I'm going to be putting together a completely online undergrad business stats course (a second semester course) and was going to use R and Rcmdr. My question: has anyone else used R for an online course, please? If so, did it go well, please? Thanks in advance, Sincerely, Erin -- Erin Hodgess Associate Professor Department of Computer and Mathematical Sciences University

Dear colleagues, particularly academic ones, So I'm creating a Microsoft Word template for myself so that every time I teach a new course, I don't have to enter in the dates manually for each class session. I'd like to use an R script that can generate an irregular series of dates starting from one date (semester begin) to another (semester end) using an irregular interval in

Help ! I am a graduate student in statistics, nearing the end of my first semester, and recently discovered R, but cannot figure out how to install it on my Mac. I am currently running OS 10.1.1, and know next to nothing about Unix or anything related. I would like to install this program on my Powerbook, as it come highly recommended, so I can use it for a class next semester. Any help

Hi All, I'm taking an Experimental Design course this semester, and have spent many long hours trying to coax the professor's SAS examples into something that will work in R (I'd prefer that the things I learn not be tied to a license). It's been a long semester in that regard. One thing that has really frustrated me is that lme has an extremely counterintuitive way for

I am trying to do t-test to test whether the mean of one one column of the data frame is greater then another. please help me out. -- Arkajyoti Jana M. Phil/ 2nd semester Centre for Economic Studies and planning School of Social Sciences Jawaharlal Nehru University New Delhi-67 [[alternative HTML version deleted]]

I've got 20 windows desktop machines in a lab on a samba network. Throughout the semester instructors usually find some software they want installed. Has anyone come up with a good way to push out files to all these machines? I've seen demos of software management in Windows 2003. Or any inexpensive commercial product for software management for networks that are not Windows AD? I think

Hi, I'm looking to do a semester-long course project involving LLVM. To avoid duplicating efforts, I wanted to know if the following projects (lifted off http://llvm.org/OpenProjects.html) are done with or are currently worked upon. Atleast I couldn't find evidence of these in the 1.9 sources. 1. Implement GVN-PRE, a powerful and simple Partial Redundancy Elimination

Dear R People: I'm not sure if I should be asking here or R-devel, but here goes: Will there be a new version of R coming out in the next few weeks, please? I'm setting up for the spring semester and want the students to have the latest version. Thanks very much, Sincerely, Erin -- Erin Hodgess Associate Professor Department of Computer and Mathematical Sciences University of

Hello all, I am very happy to announce that registration for my new course entitled "Ruby on Rails Development" at my college is now open. We are offering this course as part of our LAMP certificate which is designed for working professionals who want to upgrade their skills. I think that it is a sign of Rails'' growing maturity that I was able to propose this and work it

Dear R People: I will be teaching an undergraduate Design of Experiments class in the Spring Semester. It will be very much an applied course. My question, please: has anyone used R for a course like this, please? I've tried Rcmdr for a regression course and just plain command line for a time series course. Should I use Rcmdr, or teach them to use the command line, OR is there something

Does anyone know what I should be doing if I want to cross compile LLVM for the ARM architecture? I want to use the LLVM JIT on ARM for a class project this semester. I have built and/or installed a few different gcc arm (arm-linux, and also one that is arm-elf) toolchains, and have had trouble getting LLVM 2.6 to configure and compile using the --host and --build switches of the config. If there

Greetings, I am Hemant Kumar Singh, a computer science undergrad studying in NIT Warangal, India. I am interested to work on the project "Weighting Schemes" under the guidance of Olly Bets and Gaurav Arora; this project requires basic(or better) C++ knowledge and I've done 2 years of basic C++ in my high school. Moreover, this is my 2nd semester pursuing a computer science major in

Hi Olly I will try to work on : http://trac.xapian.org/wiki/GSoCProjectIdeas#Project:LearningtoRank I will be taking a Machine Learning class the next semester and I hope that this project will help me supplement my learning in Machine Learning and also gain a bit of knowledge in IR. If you can give me ideas on how to get around with the code for LTR project, it will be awesome. I can look at

----- Forwarded message from ANIL C JOHN <anilcjohn at sify.com> ----- To: brg at dgate.org Subject: CS student from India Date: Mon, 11 Oct 2004 22:07:56 +0600 (IST) From: ANIL C JOHN <anilcjohn at sify.com> Dear Sir, I am a computer science undergrad student doing my 7th semester B.Tech in computer science (equivalent to BS). I want to do a project using LLVM compiler