Displaying 20 results from an estimated 40000 matches similar to: "mysql or java interface to R"
2000 Nov 10
1
Executing an R function from Java.
Is anyone aware of a mechanism by which I could
execute an R function from within java (say
a servlet).
thanks
Richard Piper
--
Intensive Care Unit, RNS Hospital, Sydney.
Phone: 612-9926-8656 or 8617
FAX: 612-9439-8418
Page: 612-9962-4936
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r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
2004 Jul 15
3
Eclipse plugin for R or perhaps S-plus.
Does any one know of an eclipse (http://eclipse.org) plugin for R/S.
thanks
RIchard
--
Richard Piper
Web: http://icu.rnsh.org
Mobile: 0438-120860
Sydney: 9926-8617
Kippax: 6550-5117
Email: rpiper at med.usyd.edu.au
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1999 Oct 06
1
Java interface to R
I have been doing some programming with java servlets for data
collection.
I was wondering if there is a way to connect to the R-server using java
to do data analysis. A java-interface or some connection class.
I think there is some similar facility with SAS, although I have not
looked at it.
Richard Piper
RNS Hospital,
Sydney.
2012 Feb 09
0
Java heap space Error while reading table from postgres database using RJDBC
Hi List,
I am reading table from postgres database into R session using RJDBC, table
contains 150 columns and 200000 rows.
Sample code is as below, which works fine with smaller tables.
########################################################################
db_driver <- mydir$db_driver
db_jar_file <- mydir$db_jar_file
db_server <- mydir$db_server
db_server_lgn <- mydir$db_server_lgn
2010 Mar 24
1
R and/or REngine kills Java
Hi all,
I am using R and JRI under Windows XP Pro. I am posting this question
here since the reason might be R related (since I am running an R
script) but there is also a very good chance that it is JRI only
(since I am using the JRI interface to activate the script) -- in
which case I want to apologize for misplacing this message.
I have a method that instantiates an REngine object every time
2006 Oct 09
1
accesing MySQL through JDBC
Hi all,
Completely new to this list and completely new to R so, please, accept my apologies in advance if any question is too basic or out of place. Thanks.
After reading some docs, googling around and searched the mail lists I've only found spare references to accessing databases. Among these references, few are related with JDBC and none of them include both MySQL and JDBC access.
Our
2010 Jul 07
0
Starting tomcat5: /usr/bin/rebuild-jar-repository: error: Could not find jdbc-stdext Java extension for this JVM
Due to some XML issues, we installed *1.6 from Sun jdk-6u20-nb-6_8-linux-ml.sh
on Centos. *
**
*below is the output from *[root at www2 tmp]# alternatives --config java
There are 3 programs which provide 'java'.
Selection Command
-----------------------------------------------
1 /usr/lib/jvm/jre-1.4.2-gcj/bin/java
* 2
2017 Oct 21
2
Problem when trying to run Java in R:
Hello All,
Although running Java from R used to work, for some mysterious reason, it's stopped.
Today when I tried to load a basic JDBC driver (or the sample .jinit()) code, I got:
- JavaVM: requested Java version ((null)) not available. Using Java at "" instead.
- JavaVM: Failed to load JVM: /bundle/Libraries/libserver.dylib
- JavaVM FATAL: Failed to load the jvm library.
I
2003 Jan 07
0
Your Enterprise Java/J2EE Architect Requirement
Good morning and Happy New Year 2003!
Let it be prosperous for both you and me!
Below you see a very short version of my CV as of January 2003
for your kind consideration and update.
Word, TXT, and PDF version of the complete CV are available upon request.
Enjoy the economic recovery!
Make it a great day:
ZAR
=================================================================
ZAR PETKOV,
2006 Jun 09
1
shutting down a mysql server renders cdr_mysqldead and asterisk nolonger makes or receives calls
Not res_config_mysql cdr_addon_mysql. All it does is log call detail
records. According to bug http://bugs.digium.com/view.php?id=4749
cdr_addon_mysql should not behave in this way. Therefore 1. there is no
realtime DB besides ASTDB storage of SIP phones, and 2. CDR is not a
life-or-death situation for asterisk, if it stops asterisk should
continue and replicate later (the year-old bug cited
2013 Feb 14
4
Struggling with Jruby Rails + jdbc driver
hi all,
I am having a hard time trying to find out what''s wrong with my setup. It
used to work smoothly until I decided out of the blue to do a selfupdate
and upgrade outdated on MacPort, then things started going south very
quickily.
Since MacPort kinda broke, I pull it all out and re-install the ports I
have before, which went pretty smoothly. Then to my surprise any command I
2012 Oct 30
2
Java Exception error while reading large data in R from DB using RJDBC.
Dear List,
Java Exception error while reading large data in R from DB using RJDBC.
I am trying to read large data from DB table(Vectorwise), using RJDBC
connection.
I have tested the connection with small size data and was able to fetch DB
tables using same connection(conn as in my code).
Please suggest where am i going wrong or alternate option to solve such
issues while reading large DB
2007 Mar 05
1
RJDBC
I need help.
I'm trying to connect with an Oracle DBMS and MySQL DBMS, I'm using
RJDBC package.
My code is the next:
library('rJava')
library('DBI')
library('RJDBC')
//Mysql
drv <-
JDBC("com.mysql.jdbc.Driver","C:\\Temporal\\mysql-connector-java-3.0.9-stable-bin.jar","'")
conn <- dbConnect(drv,
2007 Jan 31
1
Problem with java-1.5.0 from c4-testing
# rpm -qa java*
java-1.5.0-centos-jdbc-1.5.0.06-1.i386
java-1.5.0-centos-devel-1.5.0.06-1.i386
java-1.5.0-centos-1.5.0.06-1.i386
% java
Error occurred during initialization of VM
java/lang/NoClassDefFoundError: java/lang/Object
% ls -l /usr/bin/java
lrwxrwxrwx 1 root root 22 Jan 30 16:12 /usr/bin/java -> /etc/alternatives/java
% ls -l /etc/alternatives/java
lrwxrwxrwx 1 root root 38 Jan 30
2014 Jun 25
2
[LLVMdev] Question Regarding Sign-Overflow
Sorry, the old title didn't make sense.
> Hi,
>
> I have doubts on the following transformation in InstCombineAddSub.cpp. Is
> it always safe to preserve NSW/NUW in this case?
>
> // If this is a 'B = x-(-A)', change to B = x+A. This preserves NSW/NUW. if (Value
2011 Jun 26
1
RJDBC and multiple classpaths
Corect me if this is not the right place to post this.
I have a mdbdriver.jar (to access an MSAccess file) under Linux. I bought
the license from http://www.csv-jdbc.com/ guys. The driver work fine when
tested with DBVisualizer or another JDBC thing.
The problem is that driver needs 3 other more jar files to work. Under R I
have tried this and does not work:
> library(RJDBC)
Loading required
2010 Nov 24
1
RJDBC doesn't load Oracle driver?
After installing RJDBC on RedHat Linux and using it successfully with mySQL
JDBC driver i am trying to use it with Oracle database. I use the JDBC
driver that works fine elsewhere (use it in DBVizualizer). However, when i
try to load the driver,
drv<-JDBC("oracle.jdbc.driver.OracleDriver",
"/home/az05625/DBdrivers/ojdbc6.jar", identifier.quote="`")
it gives me
2007 Sep 27
2
rJava and RJDBC
I am desperate for help.
I am trying to get the RJDBC and rJava .5to work on both my windows xp
and linux Redhat EL5 Server. On both I get a
ava.lang.ClassNotFoundException when calling JDBC().
My example is
require(RJDBC)
classPath='C:\\libraries\\mysql-connector-java-5.1.3-rc\\mysql-connector-java-5.1.3-rc-bin.jar'
driverClass=c("com.mysql.jdbc.Driver")
drv <-
2011 Oct 19
4
Using SQL "IN" with RJDBC or RMySQL
Hello,
The code below works fine up until I try to use the "IN" statement in
the last line. The proper SQL format is:
SELECT * FROM this_table WHERE this_column IN (1,2,3,4,5)
But, I think I may be getting something like:
SELECT * FROM this_table WHERE this_column IN c(1,2,3,4,5)
Which makes no sense in SQL. I think it may be just a matter of string
massaging, but I'm not
2011 May 07
4
Activerecord::JDBCError: Invalid column number
Hi,
I''m rather new to Ruby and RoR, so I do not really know whether this ist
the right forum to place my question.
For my first ''project'' I planned to create a simple online-viewer, which
grabs data from an existing database and make them visible in a
structured form via browsers. So I thought that could be the right
beginner-project, because I have only read datasets