similar to: R under JVM

Good morning. I have a real fuzzy question to ask; we have a calculation engine which is composed by n virtual machines each of them with a jvm 2GB of memory on Linux Red Hat each of them with the "R" package which comes along with the Red Hat Linux distribution. We have now to increase the number of "nodes" trying to avoid to use new virtual or physical machines. So my

Dear R experts, I am currently facing a tricky problem which I have read a lot about in the various R mailing lists without finding exactly what I need. I have a big data frame DF (about 2,000,000 rows) with 7 columns being variables and 1 being a measure (using reshape package nomeclature). There are no "duplicates" in it. Fot each of the variables I have some "rules" to

Dear R experts, I am trying to solve this problem, related to the possibility of changing the shape of a data frame using a "pivoting-like" function. I have a dataframe df of observations as follows: ID VALIDITY YEAR PROPERTY PROPERTY VALUE A1 2007 P1 V1 A1 2007 P2 V2 A1 2007 P3 V3 A1 2008 P1 V10 A1 2008 P2 V20 A2 2007 P5 V50 A2 2008 P6 V20 A3 2007

Good morning, I am facing a problem very easy to solve with a program, but not too easy (at least IMHO) with a "declarative" approach. I have a dataframe df with some information about bank branches with a validity time associated (start date/end date, format YYYY-MM-DD) to some attributes (for example number of employees assigned). The following example will clarify this

Dear R experts, I have a problem in modifying one column of a dataframe with a datatime format using a datetime operator. Here is my dataframe A: DATACONT PROVINCIA VALORE 1 2007-12-31 MI 1 2 2007-12-31 PV 2 3 2007-12-31 NA 3 4 2007-12-31 MI 4 5 2007-12-31 RM 5 6 2007-12-31 RM 6 7 2007-12-31 MI 7 8

Good morning, I am a new R user and I am trying to learn how to use it. I am trying to solve this problem. I have a dataframe df of daily securities (for a year) earnings as follows: SEC_ID DAY EARNING IT0000001 20070101 5.467 IT0000001 20070102 5.456 IT0000001 20070103 4.954 IT0000001 20070104 3.456 .......................... IT0000002 20070101 1.456 IT0000002 20070102 1.345

Hi guys, I have samba 3.0.24 on AIX 5.3 ML 6 and sometimes in smbd.log, I found many entry like this : get_print_db: malloc fail ! To recover situation, smbd must be restarted. Any idea ? bye ** Le e-mail provenienti dalla Banca d'Italia sono trasmesse in buona fede e non comportano alcun vincolo ne' creano obblighi per la Banca stessa, salvo che cio' non sia espressamente

Hello there! Perhaps this is a little off-topic, but I notice this only on the Centos box. I'm running Centos 4 on an AMD64 which has the following entries in the fstab to connect to NFS shares on a Fedora3 box: 192.168.1.12:/home/angelo/ /home/angelo/NFS_share1 nfs rw,addr=192.168.1.12 0 0 192.168.1.12:/home/angelo/data /home/angelo/NFS_share2 nfs rw,addr=192.168.1.12 0 0

Hi all ;-) , I tried to install "Microsoft Java Virtual Machine" on Wine, but it showed me this error message! (jvm-1.png), after end of installation i tried to run a program using MS JVM, then wine appeared this error message (jvm-2.png) note: I tried to install "SUN Java Virtual Machine (JRE)" it worked well, but MS JVM didn't work! -- Best Regards

AFAIK most model fitting techniques will only deal with additive errors, not multiplicative ones. You might want to try fitting: log(y-x) = a*x + e which is linear. Andy > From: Angelo Secchi > > Hi, > is there a way in R to fit a non linear model like > > y=x+exp(a*x)*eps > > where a is the parameter and eps is the error term? > Thanks > Angelo > >

Hi, I'm interested in using LLVM to run source languages supported by GCC (mostly just C and Fortran, actually) on a JVM. There seem to be two general ways this could be accomplished. 1. LLVM bytecodes could be compiled to JVM bytecodes 2. LLVM bytecodes could be interpreted by a program running on a JVM Has anybody started work in either direction? Has anyone started work on anything

Friends, Sorry my english, i'am speaking from brazil. I have a problem with an delphi application running on wine 0.93. The application open exactly, but the buttons not it appears correctly. I send the link of screenshot: http://200.195.11.195/~prolinx/screen01.jpg any help is coming well. Thanks!!! Angelo Braga

On Sunday 29 November 2009 02:06:04 you wrote: > > So it will stack overflow on tail calls > > At the moment, yes. But then again, so does java. Sure but a lot of people like me are using LLVM precisely because it offers these wonderful features. As long as your JVM backend does not handle these features correctly its utility is greatly diminished. > Also, it looks like

---------- Mensagem reenviada ---------- Subject: Re: [Wine] Delphi Application Date: Dom 01 Jan 2006 14:32 From: Bruno <cbruno@ferreiracosta.com.br> To: wine-users@winehq.org Cc: truls@asheim.ne Olah Angelo Braga, tambem estou no Brasil, e meu ingles eh pessimo, Acho que sei qual o problema com seus icones! Jah tive um problema parecido, e resolvi instalando fontes TrueType Originais,

One more follow on, The combination of kernel.panic=60 and kernel.printk=7 4 1 7 seems to have netted the culrptit: E01-netconsole.log:Jan 18 09:45:10 E01 (10,0):o2hb_write_timeout:137 ERROR: Heartbeat write timeout to device dm-12 after 60000 milliseconds E01-netconsole.log:Jan 18 09:45:10 E01 (10,0):o2hb_stop_all_regions:1517 ERROR: stopping heartbeat on all active regions.

Hi, I''m trying to trace a jvm using the hotspot provider. I''ve enabled the flag ExtendedDTraceProbes for the running process: /opt/j2sdk-1.6.0.16/bin/amd64/jinfo -flag +ExtendedDTraceProbes 25255 But I didn''t get the expected result: dtrace -n ''hostspot$1::: {} '' 25255 dtrace: invalid probe specifier hostspot$1::: {} : probe description

Source: xen Version: 4.0.1~rc5-1 Severity: serious Justification: FTBFS User: debian-sparc at lists.debian.org Usertags: sparc Hi, your package no longer builds on sparc: | make[1]: Leaving directory `/build/buildd-sivp_0.5.2-2-sparc-3aHxSt/sivp-0.5.2' | SCI_DISABLE_TK=1 SCI_JAVA_ENABLE_HEADLESS=1 DOCBOOK_ROOT=/usr/share/sgml/docbook/stylesheet/xsl/nwalsh \ | /usr/bin/scilab -nw -f

Hi, I'm new to R and have a question which seems like it should be easy. I loaded the R port of my boot library and installed it. All of the functions and help files are available but I can't seem to access the data. The data directory was created and contains files with the extension .rda. I tried to use the data() function but I get > data(city) Error: restore file corrupted -- no

Hi, Suppose that I have a list where each component is a list of two matrices. I also have a vector of weights. How can I collapse my list of lists into a single list of two matrices where each matrix in the result is the weighted sum of the corresponding matrices. I could use a loop but this is a nested calculation so I was hoping there is a more efficient way to do this. To help clarify,

Sorry if I'm repeating something that was already said. I was just thinking "why the heck do I seem headed for JVM generation if what I want to use is LLVM", and this is the result: I'm coming from a Java background. I'm using Eclipse, I'm used to the syntax highlighting, cross referencing and refactoring support that Eclipse offers. I know I will want to have the