search for: jobjref

...ss definition: twsConnect <- function(...) new("twsConnect", ...) setClass( Class="twsConnect", representation=representation( clientId = "integer", host = "character", port = "integer", reference = "jobjRef"), prototype=prototype( clientId = as.integer(0), host = "", port = as.integer(7496), reference = .jnull()) ) setMethod("initialize", "twsConnect", function( .Object, clientId = 0, host = "", port = 7496, ...) {...

...lays an image (assuming ImageJ is installed on your computer). library(RImageJ) img <- IJ$openImage( file.choose() ) #pick an available .tif file img$show() # make the image object visible # An image is now displayed # find out about the objects involved > str(IJ) Formal class 'jobjRef' [package "rJava"] with 2 slots ..@ jobj :<externalptr> ..@ jclass: chr "ij/IJ" > str(img) Formal class 'jobjRef' [package "rJava"] with 2 slots ..@ jobj :<externalptr> ..@ jclass: chr "java/lang/Object" # now use an...

...Token[=], line 1 at weka.core.Instances.errms(Unknown Source) at weka.core.Instances.getLastToken(Unknown Source) at weka.core.Instances.readHeader(Unknown Source) at weka.core.Instances.<init>(Unknown Source) Error in validObject(.Object) : invalid class "jobjRef" object: invalid 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/...

...Javier, de antemano muchas gracias por tu ayuda! :) > > > > He intentado replicar tu script pero sale el siguiente error: > > > > Error in .jarray(v) : > > Java Exception <no description because toString() 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 o...

Hello, Consider this : > setClass("track", representation(x="numeric", y="numeric")) [1] "track" > o <- new( "track", x = 1, y = 2 ) > for( i in o ){ + cat( "hello\n") + } Error: invalid type/length (S4/1) in vector allocation This happens at those lines of do_for: n = LENGTH(val); PROTECT_WITH_INDEX(v =

...d, sep = "")) s <- sprintf("select * from cypress_modeldev_account_info") temp <- dbGetQuery(conn, s) Error in .jcheck() : Java Exception <no description because toString() failed>.jcall(rp, "I", "fetch", stride)<S4 object of class "jobjRef"> -- View this message in context: http://r.789695.n4.nabble.com/Java-Exception-error-while-reading-large-data-in-R-from-DB-using-RJDBC-tp4647844.html Sent from the R help mailing list archive at Nabble.com.

...olve it. The error I get is the following: ---- Error in .jcheck(silent = FALSE) : Java Exception <no description because toString() failed>.jcall(row[[ir]], "Lorg/apache/poi/ss/usermodel/Cell;", "createCell", as.integer(colIndex[ic] - 1))<S4 object of class "jobjRef"> ---- As I am not a programmer, i don't really understand the error message. I did a search to try to understand what is wrong and if i am correct the problem is related with the 'rjava' package. I am not using directly this package but i am using the 'xlsx' package th...

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)

...st")) : 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 = <S4 object of class "jobjRef">)) at call.R#13 7: .External(RcreateObject, class, ..., silent = silent) at call.R#13 6: .jnew("weka/core/Attribute", attname[i], .jcast(levels, "java/util/List")) at readers.R#243 5: read_data_into_Weka(mf, 1L) at readers.R#33 4: read_model_frame_into_Weka(mf) at class...

...x1000m") > 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-space-tp4661792.html Sent from the R help mailing list archive at Nabble.com.

...text html latex jfloat text html latex jinit text html latex example jnew text html latex example jnull text html latex example jobjRef-class text html latex jreflection text html latex example print text html latex ** building package indices ... * DONE (rJava) The downloaded packages are in /tmp/RtmptQkoVL/downloaded_packages &g...

...text html latex jfloat text html latex jinit text html latex example jnew text html latex example jnull text html latex example jobjRef-class text html latex jreflection text html latex example jsimplify text html latex example show text html latex ** building package indices ... * DONE (rJava) The downl...

...text html latex jinit text html latex example jmemprof text html latex example jnew text html latex example jnull text html latex example jobjRef-class text html latex jpackage text html latex example jreflection text html latex example jserialize text html latex jsimplify text html latex...