0

所以我试图通过 JRI 从 Java 中使用 R。我正在为 Eclipse 使用 RJava 插件,并且 rJava 附带的两个测试文件工作正常(rtest 和 rtest2)。但是当尝试运行这个简单的代码片段时,我得到一个 EXCEPTION_ACCESS_VIOLATION:

public static void main(String... args) {
    Rengine re = new Rengine();

    if (!re.waitForR()) {
        System.out.println("Unable to load R");
        return;
    } else
        System.out.println("Connected to R");

    re.eval("x=c(1:10)");
    double d = re.eval("mean(x)").asDouble();
    System.out.println(d);
}

我得到的输出:

    Connected to R

A fatal error has been detected by the Java Runtime Environment:

 EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x000000006c726096, pid=5284, tid=7868

JRE version: Java(TM) SE Runtime Environment (8.0_25-b18) (build 1.8.0_25-b18)
Java VM: Java HotSpot(TM) 64-Bit Server VM (25.25-b02 mixed mode windows-amd64 compressed oops)
Problematic frame:
C  [R.dll+0x26096]

Failed to write core dump. Minidumps are not enabled by default on client versions of Windows

An error report file with more information is saved as:
C:\Users\gebruiker\workspace64\RTest\hs_err_pid5284.log

If you would like to submit a bug report, please visit:
  http://bugreport.sun.com/bugreport/crash.jsp
The crash happened outside the Java Virtual Machine in native code.
See problematic frame for where to report the bug.

完整日志: http: //pastebin.com/18wHWihB

我在日志中看到了这个,它必须做些什么吗?(错误使用了 eval 函数?我只是复制了一个例子......)

Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
j  org.rosuda.JRI.Rengine.rniParse(Ljava/lang/String;I)J+0
j  org.rosuda.JRI.Rengine.eval(Ljava/lang/String;Z)Lorg/rosuda/JRI/REXP;+53
j  org.rosuda.JRI.Rengine.eval(Ljava/lang/String;)Lorg/rosuda/JRI/REXP;+3
j  Main.main([Ljava/lang/String;)V+35
v  ~StubRoutines::call_stub

如果有人可以提供帮助,我很茫然,将不胜感激:)

4

2 回答 2

3

像下面那样实例化 rengine,我刚刚将 10 作为默认大小。

String args1[] = new String[10];
Rengine rengine = new Rengine(args, false, null);
于 2014-12-08T08:06:45.907 回答
0

您必须R_HOMEJVM environment. 在你的环境变量中设置它是行不通的,JVM知道这一点。只是自己想出来的。

于 2016-01-13T21:49:11.320 回答