java - 如何使用 RCaller 将 RPlot 转换为 Java?
问题描述
我正在尝试使用 RCaller 将 RPlot 转换为 Java,但低于异常。任何人都可以帮我解决它。谢谢 :) ...
Globals.R_current = "/usr/local/bin/R";
Globals.Rscript_current= "/usr/local/bin/Rscript";
RCode code = RCode.create();
RCaller caller = RCaller.create(code,
RCallerOptions.create(Globals.Rscript_current, Globals.R_current,
FailurePolicy.RETRY_5, 9223372036854775807L, 100L,
RProcessStartUpOptions.create()));
caller.setRCode(code);
code.addRCode("volume_ts <- ts(data$volume,start = c(2017,11),frequency = 12)");
code.addRCode("volume <-subset(volume_ts,end=26)");
code.addRCode("real <- subset(volume_ts, start = 27)");
code.addRCode("arima <- auto.arima(volume)");
code.addRCode("estimate <- forecast(arima,h=15)");
code.addRCode("ds <- data.frame(estimate)");
code.addRCode("fpoint <- ds$Point.Forecast");
code.addRCode("autoplot(estimate)+autolayer(real)");
code.endPlot();
File file = code.startPlot();
caller.runOnly();
ImageIcon i=code.getPlot(file);
code.showPlot(file);
...
低于异常:
Exception in thread "main" java.awt.HeadlessException
at java.awt.GraphicsEnvironment.checkHeadless(GraphicsEnvironment.java:204)
at java.awt.Window.<init>(Window.java:536)
at java.awt.Frame.<init>(Frame.java:420)
at java.awt.Frame.<init>(Frame.java:385)
at javax.swing.JFrame.<init>(JFrame.java:189)
at com.github.rcaller.rstuff.RPlotViewer.<init>(RPlotViewer.java:49)
at com.github.rcaller.rstuff.RCode.showPlot(RCode.java:227)
解决方案
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