Re: [R] unzipping with ff

2012-09-13 Thread Wijffels, Jan
Hi Dave, You need to save the ff file before you quit R. As in ffsave(ffcolTest, file = \\ffTest') When you reopen R, you can now use ffload(""). Regarding your question on if ff suits your needs. This is probably the case, I'm regularly using it for data size a lot bigger than yours. Remark that

Re: [R] issue with encoding in R-2.8.1 invalid multibyte character

2008-12-31 Thread Wijffels, Jan
On Wed, 31 Dec 2008, Wijffels, Jan wrote: > Yes, it was the section sign (double s) symbol that I was trying to > print connecting from a Windows machine with Latin1 encoding to a UTF-8 > Linux machine. > I changed the translation behaviour in my Putty SSH from Latin1 to UTF-8 &

Re: [R] issue with encoding in R-2.8.1 invalid multibyte character

2008-12-31 Thread Wijffels, Jan
I need to change the scripts I develop in Latin1 on Windows to UTF-8 before I upload them to our server. Thanks for the help. -Oorspronkelijk bericht- Van: Prof Brian Ripley [mailto:rip...@stats.ox.ac.uk] Verzonden: woensdag 31 december 2008 9:22 Aan: Peter Dalgaard CC: Wijffels, Jan

[R] issue with encoding in R-2.8.1 invalid multibyte character

2008-12-30 Thread Wijffels, Jan
Hi, We recently switched from R2.7.0 to R2.8.1 but having problems tracking down this 'invalid multibyte character' encoding issue. Can someone point us how to solve this? > sessionInfo() R version 2.8.1 (2008-12-22) x86_64-unknown-linux-gnu locale: LC_CTYPE=en_US.UTF-8;LC_NUMER

[R] Need some advice on optimization

2008-11-20 Thread Wijffels, Jan
Hi I'm quite new to optimization algorithms and I could use some advice or pointers. I'm using ?optim (method L-BFGS-B) to optimize a function over a 60-dimensional parameter space. The function itself takes about 1 to 6 minutes to compute. It finds an optimum after 6 tot 24 hours, depending on

[R] fetch size of monitor

2008-08-28 Thread Wijffels, Jan
Hi helpeRs, I'm building a quick GUI using the package gWidgets. Really wonderful and fast to build a GUI :-) I'm still looking for a way to let the ?gwindow fill up the whole screen. Is there a way to fetch the dimensions of the monitor on as MS Windows plaform? Thanks for any help,