search for: jcast

...R version.string R version 2.15.2 (2012-10-26) nickname Trick or Treat I'm trying to use RWeka, in particular an example in the help file for make_Weka_classifier > model <- NB(Class ~ ., data = HouseVotes84) Error in .jnew("weka/core/Attribute", attname[i], .jcast(levels, "java/util/List")) : java.lang.NoSuchMethodError: <init> > traceback() 8: stop(list(message = "java.lang.NoSuchMethodError: <init>", call = .jnew("weka/core/Attribute", attname[i], .jcast(levels, "java/util/List")), jobj = &l...

...object for slot "jobj" in class "jobjRef": got class "NULL", should be or extend class "externalptr" In addition: Warning message: Unable to create object of the class weka/core/Instances , returning null reference. in: .jnew("weka/core/Instances", .jcast(reader, "java/io/Reader")) Execution halted My R script seems to run fine on Windows XP. Thanks in advance, Derek

...e java code, but I seem to be unable to do this (See code below). When searching online for a solution I found that rJava 0.5-2 (the version under development not yet in CRAN) is adding "direct support for raw vectors as method parameters". Is this related? I also tried to use .jarray / .jcast in various combinations to no avail. The only way I can think of to solve this is to modify the java code to allow me to upload a row of the matrix one at a time. Any other ideas? > require(rJava); Loading required package: rJava > t = rbind(c(1,2,3),c(2,3,4),c(1,2,10)); > .jinit() >...

...g() failed>.jarray(v)<S4 > > object of class "jobjRef"> > > > saveWorkbook(exc) > > Error in .jcheck() : > > Java Exception <no description because toString() > > failed>.jcall("RJavaTools", "Z", "hasMethod", .jcast(x, > > "java/lang/Object"), name)<S4 object of class "jobjRef"> > > > > El 26 de julio de 2016, 13:25, Javier Martínez-López < > > javier.martinez en bc3research.org> escribió: > > > >> Yo utilizo este script, done 'DataFram...

...Weka_classifier(m, cost = matrix(c(0,2,1,0), ncol = 2), numFolds = 10, complexity = TRUE, seed = 123, class = TRUE) e summary(e) e$details ============ But executing "J48(play~., data = w)" generates the following error: ====== Error in .jnew("weka/core/Attribute", attname[i], .jcast(levels, "java/util/List")) : java.lang.NoSuchMethodError: <init> ====== Can anybody help me to fix this problem? Thanks!

...sheet = "SP") alos this one options(java.parameters = "-Xmx1000m") > writeWorksheet(wb, SP, sheet = "SP") Erreur dans .jcheck() : Java Exception <no description because toString() failed>.jcall("RJavaTools", "Z", "hasField", .jcast(x, "java/lang/Object"), name)<S4 object of class "jobjRef"> The size of my data is very very huge ( i have to create 3187 sheets of xlsx to pute the label of variables -- View this message in context: http://r.789695.n4.nabble.com/Eror-OutOfMemoryError-Java-Java-heap-s...

...ms*load_factor. ;) Thus I am lead to believe that I could scale very well and serve considerably more than 40 producer. What do think, is there a flaw I can't see? How does icecast do it? Take care, Andre P.S.: If you like UML-pictures, look at the paragraph Architecture/Design on http://jcast.sourceforget.net/ --- >8 ---- List archives: http://www.xiph.org/archives/ icecast project homepage: http://www.icecast.org/ To unsubscribe from this list, send a message to 'icecast-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Un...

Buenos días a todos! Estoy trabajando con una base de datos que directamente he descargado de internet y después de prepararla un poco necesito exportarla a Excel he intentando con las dos opciones que mencionaré al final pero ninguna funciona, de qué otra manera puedo exportar esos datos a Excel... muchas gracias por su ayuda y pronta respuesta! 1) library(xlsx) library(rJava)

Dear all, I have some troubles using the stemming algorithm provided by the tm (text mining) + Snowball packages. Here is my config: MacOS 10.5 R 2.12.0 / R 2.13.1 / R 2.14.1 (I have tried several versions) I have installed all the needed packages (tm, rJava, rWeka, Snowball) + dependencies. I have desactivated AWT (like written in

...Formats: text html latex example accessOp text html latex example jarray text html latex example jarrayRef-class text html latex jcall text html latex example jcast text html latex example jfloat-class text html latex jfloat text html latex jinit text html latex example jnew text html lat...

...Formats: text html latex example accessOp text html latex example jarray text html latex example jarrayRef-class text html latex jcall text html latex example jcast text html latex example jcastToArray text html latex example jcheck text html latex example jequals text html latex example jfield...

...Formats: text html latex example accessOp text html latex example jarray text html latex example jarrayRef-class text html latex jcall text html latex example jcast text html latex example jcastToArray text html latex example jcheck text html latex example jengine text html latex example jequals...

Using custom mime types, I''ve run into instances where I end up calling the same function over and over again for a specific type. After a little tweaking I came up with a monkey patch that allows to pass a default block at mimetype registration time, and allows responder block calls to take arguments. I uploaded the monkey patch so let me know your thoughts. It currently only works for