一幅图像中的多个OHLC数据集 [英] Multiple OHLC datasets in one image

问题描述

如何使用JFreeChart在一张图像中绘制多个数据集?

How can I chart multiple datasets in one image using JFreeChart ?

本质上，我想在一张图中绘制股票的价格及其移动平均线.

Essentially I want to chart a stock's price and it's moving average line in one image.

我尝试获取XYPlot并添加第二个数据集，但是它不起作用.

I've tried getting the XYPlot and adding the second dataset, but it does not work.

DefaultOHLCDataset dataset = new DefaultOHLCDataset(symbol, items);
DefaultOHLCDataset dataset2 = new DefaultOHLCDataset(symbol, evs);
JFreeChart chart2 = ChartFactory.createHighLowChart(
    symbol, "minutes", "prices", dataset, true);        
chart2.getXYPlot().setDataset(1, dataset2);

还是有专门用于股票交易的Java库更易于使用?

Or is there any specialized java library for stock trading application that's easier to use?

推荐答案

请注意， DefaultOHLCDataset 是"OHLCDataset接口的简单实现.此实现仅支持一个系列."您可能需要 OHLCSeriesCollection ，它也实现了OHLCDataset，并且可以容纳多个 OHLCSeries .

Note that DefaultOHLCDataset is "A simple implementation of the OHLCDataset interface. This implementation supports only one series." You probably want OHLCSeriesCollection, which also implements OHLCDataset and can hold more than one OHLCSeries.

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