Re: [Rd] On R performance

2012-03-09 Thread Dirk Eddelbuettel
Justin, On 8 March 2012 at 11:06, Justin Talbot wrote: | I've been working on an R performance academic project for the last | couple years which has involved writing an interpreter for R from | scratch and a JIT for R vector operations. Cool. I think John mention that once or twice and I promp

Re: [Rd] On R performance

2012-03-09 Thread Dominick Samperi
On Thu, Mar 8, 2012 at 2:06 PM, Justin Talbot wrote: > I've been working on an R performance academic project for the last > couple years which has involved writing an interpreter for R from > scratch and a JIT for R vector operations. > > With the recent comments on Julia, I thought I'd share som

Re: [Rd] Unexpected behaviour for RowSideColors in function heatmap

2012-03-09 Thread Pär Engström
Thanks Kevin, I experienced the same problems with heatmap.2, and therefore resorted to heatmap. For heatmap, the code change I suggested below fixes the problem with side color ordering as far as I can tell, and lets one create a symmetric heatmap with the origin at the top left (which I agree

[Rd] How to get R to connect to a Unix domain (AF_LOCAL or AF_UNIX) socket?

2012-03-09 Thread Tomer Altman
Hello, I need to interface R to another program that can communicate over a Unix domain socket. This is a filesystem-based socket, not a port-based socket (i.e., a AF_LOCAL or AF_UNIX socket, not a AF_INET TCP/IP socket). I am aware that R can connect to a TCP/IP AF_INET socket. I am also aware t

[Rd] On R performance

2012-03-09 Thread Justin Talbot
I've been working on an R performance academic project for the last couple years which has involved writing an interpreter for R from scratch and a JIT for R vector operations. With the recent comments on Julia, I thought I'd share some thoughts from my experience since they differ substantially f