search for: olympiades

Greetings all! A recent news item got me thinking that a problem stated therein could provide a teasing little exercise in R programming. http://www.bbc.co.uk/news/uk-england-cambridgeshire-17680326 Cambridge University hosts first European 'maths Olympiad' for girls The first European girls-only "mathematical Olympiad" competition is being hosted by Cambridge

I participate peripherally on a listserve for middle- and high-school science teachers. Sometimes questions about graphing or data analysis come up. I never miss an opportunity to advocate for R. However, the teachers are often skeptical that their students would be able to issue commands or write a little code; they think it would be too difficult. Perhaps this stems from the Microsoft- and

Hi. As shown in the simplified example below, I'm having trouble allocating memory for large vectors, even though it would appear that there is more than enough memory available. That is, even with a memory limit of 1500 MB, R 2.6.1 (Win) will allocate memory for a first vector of 285 MB, but not for a second vector of the same size. Forcing garbage collection does not seem

...es use of this "cxy" parameter to scale the graphics, and I don't find this parameter in help(par). thank you, IOsu ------------------------------------------------------------------------------- Jes?s Mar?a Fr?as Celayeta "Valeu a pena? Tudo vale a pena ENSIA-INRA, Av. des Olympiades, 1 se a alma n?o ? pequena 91744, Massy. FRANCE Quem quer passar al?m do Bojador Fax:intl+33+1+69935185 Tem que passar al?m da dor. Phone:intl+33+1+69935191 Deus ao mar o perigo e abismo deu, Mas nele ? que espelhou o c?u" -------------------------------------------------------------...

Hello. I am observing some strange behavior on a Linux system that has joined a Windows Active Directory domain using the Samba suite. Our servers are based on Ubuntu v12.04 but have kernel v3.12.17 and Samba v4.3.6. The problem that I'm trying to understand is that group name resolution through Winbind occasionally fails. Here's an example where one group name could not be resolved. This

Hi all, (thanks to Reid, who gave nice advice) the fibonacci function code works now. Please find attached file. but... the performance is adequate, say, for byte-code interpretation mode and not for optimized JITing. fibonacci function of 35 from attached file is more then 100 times slower then the following code compiled with "gcc -O2" : ----------- #include <iostream> int

I'm probably misunderstanding something in "Writing R Extensions" version 1.0.0. In the chapter on the R API, section 4.7, it is stated that the functions listed in R_ext/Linpack.h are available to users' Fortran code. I am developing a developing a library of ode solvers, based on lsoda and ddassl, and which in turn call some routines from linpack and double precision blas. I