绘制多个图表一中MPAndroidChart [英] Plot Multiple Charts in one in MPAndroidChart

问题描述

我要绘制两个不同的数据集在一个图表。

I have to plot two different dataSets in a single graph.

数据集-1

    String[] xAxisOne = new String[] {
            "0", "1", "2", "3", "4", "5", "6"
    };

    float[] dataInput = {
            1f, 2f, 3f, 4f, 5f, 6f, 7f
    };

数据集-2

    String[] xAxisTwo = new String[] {
            "0", "2", "4", "5", "6", "8", "9"
    };

    float[] dataIn = {
            3f, 4f, 5f, 6f, 7f, 8f, 9f
    };

在上面的数据，数据集-1是由哪个图形创建参考。 数据集-2已经被绘制在同组不同的x值 {xAxisTwo}

In the above data, DataSet-1 is reference by which graph is created. DataSet-2 has to be plotted in the same with different set of X-Values {xAxisTwo}.

在现有的实施，前6个值 {}的DataInput 绘制和放大器;接下来的6值的 {} DATAIN 绘制参照 xAxisOne ，如何绘制的要求。

In existing Implementation, first 6 values {dataInput} are plotted & next 6 values {dataIn} are plotted with reference to xAxisOne, How to plot as required.

推荐答案

您可以应用于LineChart，统一x轴，而忽略了零点，每个数据集执行此操作。请参见下面的code：

You can do this with LineChart and unifying the xAxis and ignoring the "null" point for each dataset. See the code below:

//float[] dataInput = {
//      1f, 2f, 3f, 4f, 5f, 6f, 7f
//};

//values for datainput Dataset1 at your axisone positions
ArrayList<Entry> dataset1 = new ArrayList<Entry>();
dataset1.add(new Entry(1f, 0));
dataset1.add(new Entry(2f, 1));
dataset1.add(new Entry(3f, 2));
dataset1.add(new Entry(4f, 3));
dataset1.add(new Entry(5f, 4));
dataset1.add(new Entry(6f, 5));
dataset1.add(new Entry(7f, 6));

//float[] dataIn = {
//      3f, 4f, 5f, 6f, 7f, 8f, 9f
//};

//values for datainput Dataset2 at your axisone positions
ArrayList<Entry> dataset2 = new ArrayList<Entry>();
dataset2.add(new Entry(3f, 0));
dataset2.add(new Entry(4f, 2));
dataset2.add(new Entry(5f, 4));
dataset2.add(new Entry(6f, 5));
dataset2.add(new Entry(7f, 6));
dataset2.add(new Entry(8f, 7));
dataset2.add(new Entry(9f, 8));

//String[] xAxisOne = new String[] {
//      "0", "1", "2", "3", "4", "5", "6"
//};

///String[] xAxisTwo = new String[] {
///     "0", "2", "4", "5", "6", "8", "9"
///};


// Union from xAxisOne and xAxisTwo
String[] xAxis = new String[] {"0", "1", "2", "3", "4", "5", "6", "8", "9"};


ArrayList<LineDataSet> lines = new ArrayList<LineDataSet> ();

LineDataSet lDataSet1 = new LineDataSet(dataset1, "DataSet1");
lDataSet1.setColor(Color.RED);
lDataSet1.setCircleColor(Color.RED);
lines.add(lDataSet1);
lines.add(new LineDataSet(dataset2, "DataSet2"));

LineChart chart = (LineChart) getView().findViewById(R.id.chart);
chart.setData(new LineData(xAxis, lines));

的最终结果将是：

The final result will be:

看着为dataSet1的红​​线比蓝线2分以上。 如果为dataSet1只有这两点（在和1位3）是这样的：

Looks that the red line of dataset1 have 2 more points than blue line. If the dataset1 have only these two points(at position 1 and 3) like this:

ArrayList<Entry> dataset1 = new ArrayList<Entry>();
    dataset1.add(new Entry(2f, 1));
    dataset1.add(new Entry(4f, 3));

这将是结果：

it will be the result:

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