running SJava
On Wed, 28 Aug 2002, Stephen C. Upton wrote:
Folks, Having problems getting started with SJava and request help. I get this error when running .JavaInit() (within RGui 1.5.1, on Windows 2000): Error in .JavaInit() : Couldn't start Java Virtual Machine: Cannot find the Omegahat interface manager class. Check you classpath!
One workaround I have had some success with is to set the working directory to the directory containing the Omegahat dll before running .JavaInit(). -thomas
(Before you right back saying read the emails, please read further - in short, been there, done that) Environment: RWin 1.5.1 (install from binaries) OS Win 2000 SP3 jdk 1.4.0 (could this be it?? I saw requirement for 1.2 or 1.3 - I wouldn't think this is the problem) SJavaWin_0.62-8 binary (. . . what else?) Install procedure: 1. According to http://www.omegahat.org/RSJava/#Download, cd $RHOME/library unzip SJavaWin_0.62-8.zip 2. did that 3. got .Defunct error. email suggested changing SJava file in {R_HOME}/library/SJava/R 4. did that 5. tried .JavaInit() Attempts to solve problem: 1. Read the FAQ. Not much here on this one, although several emails requesting help on this one, with no apparent solution. 2. Read the Archives. There were several emails concerning this, but though one even said problem solved, but does not. It's a java classpath problem, and not a LD_LIBRARY problem. 3. RTFM. Actually, the Howto.pdf dated 16 July 2002 (page 5), in fact states: "The default values in .javaConfig are computed and fixed when the R library is installed These contain the entries of the default classpath necessary to locate the classes used to run the embedded Omegahat interpreter and also the system properties that control how that interpreter is created and behaves (e.g. class names for components, etc.)." The other manuals don't seem to cover the a. Tried setting a reasonable classpath, in my case C:/R/rw1051/library/SJava in a CLASSPATH environment variable. java should be able to find the org.omegahat.Interfaces.NativeInterface.OmegaInterfaceManager. However I noticed on the SJava file, in the javaConfig assignment, the expression if(nchar(tmp) > 0) classPath <- strsplit(tmp,":")[[1]] } " which seems to split based on a unix environment and not a windows. Realizing I *shouldn't* need this just to see if things will run, took out my CLASSPATH (after trying other various settings). b. Tried modifying the SJava file where the default$classPath is set. 4. Uninstalled by deleting the library/SJava directory and started over. Any help would be greatly appreciated. Also willing to be a guinea pig for the windows stuff. Haven't tried a install from source. My next step if I haven't really mucked things up. thanx steve novice R user, but plenty of java -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._
Thomas Lumley Asst. Professor, Biostatistics tlumley at u.washington.edu University of Washington, Seattle ^^^^^^^^^^^^^^^^^^^^^^^^ - NOTE NEW EMAIL ADDRESS -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._