similar to: How to efficiently share data (a dataframe) between R and Java

Dear all, thank you for your hints. I would prefer to do not use Rserve as Dirk mentioned. @Simon I have full control over the Java implementation - I can adapt the code that I use for the communication R <-> Java. > You can natively access structures on each side. The fastest way is to > use R representation (column-oriented) in Java - that is much faster > than any kind of

You can pass the entire df, example: > data(iris) > iris$sp = as.character(iris$Species) > o=.jarray(lapply(iris, .jarray)) > .jcall("C",,"df",o) df, 6 variables [0]: double[150] [1]: double[150] [2]: double[150] [3]: double[150] [4]: int[150] [5]: String[150] Java code: public class C { static void df(Object df[]) { int n;

On Dec 6, 2015, at 12:36 PM, Ing. Jaroslav Kucha? <jaroslav.kuchar at fit.cvut.cz> wrote: > Dear all, > > in our ongoing project we use Java implementations of several > algorithms. We also provide a ?wrapper? implemented as an R package > using rJava (https://github.com/jaroslav-kuchar/rCBA). Based on our > recent experiments, the significant portion of time is spent on

Hello. I'm solving ODEs in R. I need "as many methods as possible", so I downloaded the Fortran functions from http://www.netlib.org/ode/. Then I created DLLs and dyn.loaded them to R. Problem is that I don't know how to use them. I've been trying for many days and can't solve it. So I would be very glad if you could give me some link (or whatever) where I can see how to

I am cleaning up my 4-STABLE system. After a fresh installworld, I am looking at files that did not get touched by the install. Is it safe to remove all such files? In particular, I am looking at /usr/libexec/lib-elf.so.1, which has the schg flag set. I am afraid to remove this for fear of making my system unbootable. Could somebody please reassure me that it is ok to noschg and remove this old

From: Sui Jingfeng <suijingfeng at loongson.cn> Should be no functional change Cc: Jaroslav Kysela <perex at perex.cz> Cc: Takashi Iwai <tiwai at suse.com> Cc: Fred Oh <fred.oh at linux.intel.com> Cc: Pierre-Louis Bossart <pierre-louis.bossart at linux.intel.com> Cc: Kai Vehmanen <kai.vehmanen at linux.intel.com> Cc: Bjorn Helgaas <bhelgaas at

Hi Folks, I''m trying to setup a test envoriment which is composed by a puppetmaster running in my laptop (Macos Snow Leopard) and a puppet client running on a EC2 instance at Amazon. In order to allow the client to talk with the master I''m using an SSH Remote port forward, ie I login into from the laptop into the EC2 instance witha "-R 8140:localhost:8140" flag. This

Hello, I found a couple bugs concerning my favourite Shade/Unshade function. 1) Sometimes the shaded window gets more space than it should and, of course, nobody takes care about it, so everything drawn on this space remains here. If I move a decorated window along, its shadow cummulates quickly to full black here. Unfortunately, I don't know any reliable way how to reproduce this. (But it

----- Forwarded message from Jaroslav Mracek <jmracek@redhat.com> ----- Date: Tue, 22 Nov 2016 16:17:11 +0100 From: Jaroslav Mracek <jmracek@redhat.com> To: bcl@redhat.com, dcantrell@redhat.com, "Lumens, Christopher" <clumens@redhat.com>, pjones@redhat.com, sbueno@redhat.com, christos.triantafyllidis@gmail.com, kevin@tigcc.ticalc.org, clime@redhat.com,

Hello! I have writen some subrutines in Free-form Fortran. I would like to includ them in a package, which I would like to build on WinXP. I have all suggested tools/programs for bulding R packages on Windows (except latex). What is the best way of using these subrutines? Does sombody mybe know any translation tools for converting Free-form to fixed-form Fortran? Thanks for any suggestions,

Hello, I have a compiler in LLVM 2.9 for the KCPM3 processor. I'd like to create a subtarget for the new cpu version called KCPSM6. Besides a couple of new instructions which are not important at the moment, the KCPSM6 cpu has different instruction opcodes. Semantically the instructions are the same, hence I'd like to keep all the lowering and pattern matching stuff unmodified For

Hi, I have some real users and some virtual users. The real users use mbox file as their inbox. But I'd like to use Maildir as inbox for the virtual users. (The reason is that I am actually moving some accounts from another server that already uses Maildir.) I'd like Dovecot to find Maildir in $HOME of my virtual users as their inbox. So I tried to use the following in my users.passwd

hello ... how can I identify huge downloads on link to automticly move them to low priority queue ? somethink like combination rate and duration of session Thanks

Hello, I'm having problems with user names containing a dot. For example "j.smith". In our network we have Win2K PDC and a Samba server. smb.conf contains this: [global] security = domain password server = MYSERVER username map = /etc/samba/smbusers [myshare] valid users = j.smith write list = j.smith etc... /etc/samba/smbusers file contains this: jsmith = j.smith And Linux box

Adding --program-prefix support to the autoconf build has been an adventure. A patch was applied. It worked on the usual llvm bots, but failed on other bots with different configure options. The patch was reverted as it broke on bots specifying --build, --host, and --target in configure. An option is proposed here to change the behavior of program-prefix to it's normal behavior when

Full_Name: Ondrej Medek Version: 2.0.1 OS: Linux/Debian Sarge Submission from: (NULL) (147.32.127.204) Hi, I had a R version 1.5.1 and I used a 'barplot' with 'beside=T' and 'space' has been vector of 8 numbers 'space=c(1,0.5,rep(c(0.5,-0.5),3))'. Then I upgraded to the R 2.0.1 and my graphs are broken. If I use any vector of more than 2 elements for

The international R User Conference useR! 2012 will be held June 12-15 at Vanderbilt University in Nashville, Tennessee, USA, with a pre-conference full-day course offered on June 11. Participants are encouraged to submit a one-page abstract for oral or poster presentation at the conference. Half-day tutorials will be held in the morning and afternoon of June 12th. For tutorials, please

Hi, sorry if this question is trivial or unclear, this is my first venture into mixed C/R programming (I am reasonably experienced in each separately). I am trying to write a serialization function for a format called typedbytes, which is used as an interchange format in Hadoop circles. Since I would need to serialize according to the internal R format many small R objects I looked at the c

Hi I'm having difficulty following the advice in section 2.7 of R-exts. In one of my packages, there is a function called mobius(). I want to refer to it in the Rd file as the M??bius function, and to illustrate the M??bius inversion formula (just to be explicit: this is "Mobius" but with two dots over the second letter). R-exts section 2.7 gives \enc{J??reskog}{Joreskog}

I have this line: ALSA=`aplay --version` in a script. when I execute the script I get the message line 187: --version: command not found when I do "aplay --version" on the command line it works just fine. What is happening here, --version is a valid command line option? Thanks, jerry