This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| package rJava; | |
| import java.io.File; | |
| import java.io.IOException; | |
| import java.nio.charset.StandardCharsets; | |
| import java.nio.file.Files; | |
| import java.util.Base64; | |
| import org.rosuda.JRI.Rengine; | |
| public class RSample { | |
| public static void main(String[] args) throws IOException { | |
| Rengine engine = new Rengine(new String[] { | |
| "--no-save" | |
| }, false, null); | |
| try { | |
| int n = 1000; | |
| double[] x = new double[n]; | |
| for (int i = 0; i < n; i++) { | |
| x[i] = 0.0; | |
| for (int j = 0; j < 8; j++) | |
| x[i] += Math.random(); | |
| x[i] = (x[i] - 4.0); | |
| } | |
| File file = File.createTempFile("plot", ".svg"); | |
| file.deleteOnExit(); | |
| engine.assign("x", x); | |
| engine.eval("svg('" + file.getAbsolutePath() + "')"); | |
| engine.eval("hist(x, xlim=c(-4,4), ylim=c(0,0.6), prob=T, ann=F, panel.first = grid())"); | |
| engine.eval("par(new=T)"); | |
| engine.eval("plot(density(x), xlim=c(-4,4), ylim=c(0,0.6), xlab='' , ylab='' , main='' , col='red' )"); | |
| engine.eval("dev.off()"); | |
| byte[] bytes = Files.readAllBytes(file.toPath()); | |
| String content = new String(bytes, StandardCharsets.UTF_8); | |
| content = content.substring(content.indexOf('\n')); | |
| String out = "<html><body>\n"; | |
| out += content; | |
| out += "\n</body></html>"; | |
| System.out.println(out); | |
| } finally { | |
| engine.end(); | |
| } | |
| } | |
| } |
結果
<html><body> <svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="504pt" height="504pt" viewBox="0 0 504 504" version="1.1"> <defs> <g> <symbol overflow="visible" id="glyph0-0"> <path style="stroke:none;" d="M 0.390625 0 L 0.390625 -8.609375 L 7.21875 -8.609375 L 7.21875 0 Z M 6.140625 -1.078125 L 6.140625 -7.53125 L 1.46875 -7.53125 L 1.46875 -1.078125 Z M 6.140625 -1.078125 "/> </symbol> … <path style="fill:none;stroke-width:0.075;stroke-linecap:round;stroke-linejoin:round;stroke:rgb(74.509804%,74.509804%,74.509804%);stroke-opacity:1;stroke-miterlimit:10;" d="M 59.039062 416.800781 L 473.761719 416.800781 "/> </g> </g> </svg> </body></html>
0 件のコメント:
コメントを投稿