search for: rcallmethod

...ched file Curva LIBOR to R. I am trying to use the following commands and obtaining the following errors > res <- read.xlsx("C:\\Users\\FELIPE PARRA\\Documents\\Quantil\\Federacion\\Curva LIBOR.xlsx", 4) Error en .jcall(rowCells[[ic]], "I", "getColumnIndex") : RcallMethod: invalid object parameter > res <- read.xlsx("C:/Users/FELIPE PARRA/Documents/Quantil/Federacion/Curva LIBOR.xlsx", 4) Error en .jcall(rowCells[[ic]], "I", "getColumnIndex") : RcallMethod: invalid object parameter > res <- read.xlsx(file, sheetName=&quot...

...not run but you get the idea save(model,file="model.dat") # simple save R command # ... load("model.dat") # load the model from the previously saved file... model # should work but I get instead this error: Error in .jcall(x$classifier, "S", "toString") : RcallMethod: attempt to call a method of a NULL object. What is wrong and how can I solve this problem? Regards, -- Paulo Alexandre Ribeiro Cortez (PhD, MSc) Lecturer (Prof. Auxiliar) at the Department of Information Systems (DSI) University of Minho, Campus de Azur?m, 4800-058 Guimaraes, Portugal http://w...

....9-3 RBloomberg Version 0.4-151 Java environment initialized successfully. Looking for most recent blpapi3.jar file... Adding C:\blp\API\APIv3\JavaAPI\v3.4.6.6\lib\blpapi3.jar to Java classpath Error in .jcall("RJavaTools", "Z", "classHasField", x, name, static) : RcallMethod: cannot determine object class Anyone got a clue about this one? Can't seem to find the same error message elsewhere. -- View this message in context: http://r.789695.n4.nabble.com/Problem-using-RBloomberg-blpConnect-tp4603615.html Sent from the R devel mailing list archive at Nabble.com.

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

...173: warning: implicit declaration of function ?releaseObject? Rglue.c: At top level: Rglue.c:214: error: expected ?)? before ?*? token Rglue.c:380: error: expected ?)? before ?*? token Rglue.c:390: error: expected ?=?, ?,?, ?;?, ?asm? or ?__attribute__? before ?R1par2jvalue? Rglue.c: In function ?RcallMethod?: Rglue.c:410: error: ?jvalue? undeclared (first use in this function) Rglue.c:410: error: expected ?;? before ?jpar? Rglue.c:411: error: ?jobject? undeclared (first use in this function) Rglue.c:411: error: expected ?;? before ?tmpo? Rglue.c:412: error: expected ?;? before ?o? Rglue.c:414: error:...

...:173: warning: implicit declaration of function ?releaseObject? Rglue.c: At top level: Rglue.c:214: error: expected ?)? before ?*? token Rglue.c:380: error: expected ?)? before ?*? token Rglue.c:390: error: expected ?=?, ?,?, ?;?, ?asm? or ?__attribute__? before ?R1par2jvalue? Rglue.c: In function ?RcallMethod?: Rglue.c:410: error: ?jvalue? undeclared (first use in this function) Rglue.c:410: error: expected ?;? before ?jpar? Rglue.c:411: error: ?jobject? undeclared (first use in this function) Rglue.c:411: error: expected ?;? before ?tmpo? Rglue.c:412: error: expected ?;? before ?o? Rglue.c:414: error:...