60ef1c8551
* JAVA-2116: Move Java-R Integration to libraries-6 module * JAVA-2116: Move Guide to JMapper to libraries-data module
37 lines
1.1 KiB
Java
37 lines
1.1 KiB
Java
package com.baeldung.r;
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import com.github.rcaller.rstuff.RCaller;
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import com.github.rcaller.rstuff.RCallerOptions;
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import com.github.rcaller.rstuff.RCode;
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import java.io.IOException;
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import java.net.URISyntaxException;
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/**
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* RCaller showcase.
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*
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* @author Donato Rimenti
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*/
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public class RCallerMean {
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/**
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* Invokes the customMean R function passing the given values as arguments.
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*
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* @param values the input to the mean script
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* @return the result of the R script
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* @throws IOException if any error occurs
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* @throws URISyntaxException if any error occurs
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*/
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public double mean(int[] values) throws IOException, URISyntaxException {
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String fileContent = RUtils.getMeanScriptContent();
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RCode code = RCode.create();
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code.addRCode(fileContent);
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code.addIntArray("input", values);
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code.addRCode("result <- customMean(input)");
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RCaller caller = RCaller.create(code, RCallerOptions.create());
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caller.runAndReturnResult("result");
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return caller.getParser()
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.getAsDoubleArray("result")[0];
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}
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} |