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我正在尝试使用 Java 程序运行 solnp。为了测试这是否有效，我正在尝试运行该benchmarkids()功能。但我无法解决对包的引用。我在http://packages.renjin.org/package/org.renjin.cran/Rsolnp/检查了 Rsolnp 包，据我所知，它可以在 renjin 中加载。

我添加了 Maven 所需的包：

<dependency>
   <groupId>org.renjin.cran</groupId>
   <artifactId>Rsolnp</artifactId>
   <version>1.16-b28</version>
</dependency>

我尝试将包直接添加到我的项目中（我使用的是 Eclipse Neon），但仍然没有用。

我得到的错误：

org.renjin.eval.EvalException: Could not load package rsolnp; tried org.renjin.bioconductor:rsolnp, org.renjin.cran:rsolnp
    at org.renjin.primitives.packaging.NamespaceRegistry.getNamespace(NamespaceRegistry.java:160)
    at org.renjin.primitives.packaging.NamespaceRegistry.getNamespace(NamespaceRegistry.java:115)
    at org.renjin.primitives.packaging.Packages.library(Packages.java:41)
    at org.renjin.primitives.R$primitive$library.doApply(R$primitive$library.java:73)
    at org.renjin.primitives.R$primitive$library.apply(R$primitive$library.java:34)
    at org.renjin.primitives.special.InternalFunction.apply(InternalFunction.java:45)
    at org.renjin.eval.Context.evaluateCall(Context.java:302)
    at org.renjin.eval.Context.evaluate(Context.java:222)
    at org.renjin.primitives.special.BeginFunction.apply(BeginFunction.java:38)
    at org.renjin.eval.Context.evaluateCall(Context.java:302)
    at org.renjin.eval.Context.evaluate(Context.java:222)
    at org.renjin.eval.Context.evaluate(Context.java:163)
    at org.renjin.sexp.Closure.doApply(Closure.java:83)
    at org.renjin.eval.ClosureDispatcher.apply(ClosureDispatcher.java:73)
    at org.renjin.eval.ClosureDispatcher.applyClosure(ClosureDispatcher.java:58)
    at org.renjin.sexp.Closure.apply(Closure.java:78)
    at org.renjin.eval.Context.evaluateCall(Context.java:302)
    at org.renjin.eval.Context.evaluate(Context.java:222)
    at org.renjin.eval.Context.evaluateExpressionVector(Context.java:285)
    at org.renjin.eval.Context.evaluate(Context.java:220)
    at org.renjin.script.RenjinScriptEngine.eval(RenjinScriptEngine.java:168)
    at org.renjin.script.RenjinScriptEngine.eval(RenjinScriptEngine.java:127)
    at test.java.RsolnpTest.testRsolnp(RsolnpTest.java:55)

最后，我试图调用的代码：

import javax.script.*;
import org.renjin.script.*;

// some other tests to see if 10 * 2 in R works.

 public void testRsolnp()
{
    RenjinScriptEngineFactory factory = new RenjinScriptEngineFactory();
    ScriptEngine engine = factory.getScriptEngine();
    try
    {
        engine.eval("library(rsolnp); benchmarkids();");

    }
    catch (ScriptException e)
    {
        e.printStackTrace();
    }

    // testing code.
}
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1 回答 1

4

R 中的包名区分大小写。尝试： engine.eval("library(Rsolnp); benchmarkids();");

于 2016-12-19T21:15:11.520 回答