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Java Statistics类代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了Java中de.erichseifert.gral.data.statistics.Statistics的典型用法代码示例。如果您正苦于以下问题:Java Statistics类的具体用法?Java Statistics怎么用?Java Statistics使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。



Statistics类属于de.erichseifert.gral.data.statistics包,在下文中一共展示了Statistics类的20个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的Java代码示例。

示例1: revalidateAxisExtrema

import de.erichseifert.gral.data.statistics.Statistics; //导入依赖的package包/类
/**
 * Rebuilds cached plot data.
 */
private void revalidateAxisExtrema() {
	synchronized (this) {
		for (Entry<DataSource, Map<Integer, String>> entryByDataSource : columnToAxisMappingByDataSource.entrySet()) {
			DataSource dataSource = entryByDataSource.getKey();
			Map<Integer, String> columnToAxisMapping = entryByDataSource.getValue();
			for (Entry<Integer, String> entry : columnToAxisMapping.entrySet()) {
				Integer colIndex = entry.getKey();
				String axisName = entry.getValue();

				Column<?> col = dataSource.getColumn(colIndex);
				Double min = axisMin.get(axisName);
				Double max = axisMax.get(axisName);
				if (min == null || max == null) {
					min = col.getStatistics(Statistics.MIN);
					max = col.getStatistics(Statistics.MAX);
				} else {
					min = Math.min(min, col.getStatistics(Statistics.MIN));
					max = Math.max(max, col.getStatistics(Statistics.MAX));
				}
				axisMin.put(axisName, min);
				axisMax.put(axisName, max);
			}
		}
	}
}
 
开发者ID:eseifert,项目名称:gral,代码行数:29,代码来源:AbstractPlot.java


示例2: revalidateAxisExtrema

import de.erichseifert.gral.data.statistics.Statistics; //导入依赖的package包/类
/**
 * Rebuilds cached plot data.
 */
private void revalidateAxisExtrema() {
	synchronized (this) {
		for (Entry<Tuple, String> entry : mapping.entrySet()) {
			Tuple mapKey = entry.getKey();
			DataSource s = (DataSource) mapKey.get(0);
			Column col = s.getColumn((Integer) mapKey.get(1));
			String axisName = entry.getValue();

			Double min = axisMin.get(axisName);
			Double max = axisMax.get(axisName);
			if (min == null || max == null) {
				min = col.getStatistics(Statistics.MIN);
				max = col.getStatistics(Statistics.MAX);
			} else {
				min = Math.min(min, col.getStatistics(Statistics.MIN));
				max = Math.max(max, col.getStatistics(Statistics.MAX));
			}
			axisMin.put(axisName, min);
			axisMax.put(axisName, max);
		}
	}
}
 
开发者ID:charles-cooper,项目名称:idylfin,代码行数:26,代码来源:AbstractPlot.java


示例3: getRowStatistics

import de.erichseifert.gral.data.statistics.Statistics; //导入依赖的package包/类
public DataSource getRowStatistics(String key) {
	DataTable statisticsTable = getRowCount() != 0 ? new DataTable(Double.class) : new DataTable();
	for (int rowIndex = 0; rowIndex < getRowCount(); rowIndex++) {
		Record row = getRecord(rowIndex);
		statisticsTable.add(new Statistics(row).get(key));
	}
	return statisticsTable;
}
 
开发者ID:eseifert,项目名称:gral,代码行数:9,代码来源:AbstractDataSource.java


示例4: MedianFilter

import de.erichseifert.gral.data.statistics.Statistics; //导入依赖的package包/类
public MedianFilter(Iterable<T> data, int windowSize) {
	filtered = new LinkedList<>();

	windowIterator = new WindowIterator<>(data.iterator(), windowSize);

	while (windowIterator.hasNext()) {
		List<T> window = windowIterator.next();
		Statistics windowStatistics = new Statistics(window);
		double median = windowStatistics.get(Statistics.MEDIAN);
		filtered.add(median);
	}
}
 
开发者ID:eseifert,项目名称:gral,代码行数:13,代码来源:MedianFilter.java


示例5: createBoxData

import de.erichseifert.gral.data.statistics.Statistics; //导入依赖的package包/类
/**
 * Extracts statistics from the columns of an data source that are commonly
 * used for box-and-whisker plots. The result is a new data source
 * containing <i>column index</i>, <i>median</i>, <i>mininum</i>, <i>first
 * quartile</i>, <i>third quartile</i>, and <i>maximum</i> for each column.
 * @param data Original data source
 * @return New data source with (columnIndex, median, min, quartile1,
 *         quartile3, max)
 */
@SuppressWarnings("unchecked")
public static DataSource createBoxData(DataSource data) {
	if (data == null) {
		throw new NullPointerException(
			"Cannot extract statistics from null data source.");
	}

	DataTable stats = new DataTable(Integer.class, Double.class,
		Double.class, Double.class, Double.class, Double.class);

	// Generate statistical values for each column
	for (int c = 0; c < data.getColumnCount(); c++) {
		Column col = data.getColumn(c);
		if (!col.isNumeric()) {
			continue;
		}
		stats.add(
			c + 1,
			col.getStatistics(Statistics.MEDIAN),
			col.getStatistics(Statistics.MIN),
			col.getStatistics(Statistics.QUARTILE_1),
			col.getStatistics(Statistics.QUARTILE_3),
			col.getStatistics(Statistics.MAX)
		);
	}
	return stats;
}
 
开发者ID:eseifert,项目名称:gral,代码行数:37,代码来源:BoxPlot.java


示例6: createRasterData

import de.erichseifert.gral.data.statistics.Statistics; //导入依赖的package包/类
/**
 * Takes a matrix of values and creates a new data source that stores the
 * values in (x, y, value) format.
 * @param data Original data source with values in each cell.
 * @return New data source with (x, y, value) columns
 */
@SuppressWarnings("unchecked")
public static DataSource createRasterData(DataSource data) {
	if (data == null) {
		throw new NullPointerException("Cannot convert null data source.");
	}

	DataTable coordsValueData =
		new DataTable(Double.class, Double.class, Double.class);

	// Generate pixel data with (x, y, value)
	double min = ((Number) data.getRowStatistics(Statistics.MIN).
			getColumnStatistics(Statistics.MIN).get(0, 0)).doubleValue();
	double max = ((Number) data.getRowStatistics(Statistics.MAX).
			getColumnStatistics(Statistics.MAX).get(0, 0)).doubleValue();
	double range = max - min;
	int i = 0;
	for (Comparable<?> cell : data) {
		int x =  i%data.getColumnCount();
		int y = -i/data.getColumnCount();
		double v = Double.NaN;
		if (cell instanceof Number) {
			Number numericCell = (Number) cell;
			v = (numericCell.doubleValue() - min) / range;
		}
		coordsValueData.add((double) x, (double) y, v);
		i++;
	}
	return coordsValueData;
}
 
开发者ID:eseifert,项目名称:gral,代码行数:36,代码来源:RasterPlot.java


示例7: testColumnStatisticsContainsColumnForEachColumnInDataSource

import de.erichseifert.gral.data.statistics.Statistics; //导入依赖的package包/类
@Test
public void testColumnStatisticsContainsColumnForEachColumnInDataSource() {
	int columnCount = 3;
	source = new StubAbstractDataSource(columnCount, 0);
	DataSource columnStatistics = source.getColumnStatistics(Statistics.N);
	assertThat(columnStatistics.getColumnCount(), is(source.getColumnCount()));
}
 
开发者ID:eseifert,项目名称:gral,代码行数:8,代码来源:AbstractDataSourceTest.java


示例8: testColumnStatisticsForMultiColumnDataSourceContainsSingleRow

import de.erichseifert.gral.data.statistics.Statistics; //导入依赖的package包/类
@Test
public void testColumnStatisticsForMultiColumnDataSourceContainsSingleRow() {
	int columnCount = 5;
	source = new StubAbstractDataSource(columnCount, 0);
	DataSource columnStatistics = source.getColumnStatistics(Statistics.N);
	assertThat(columnStatistics.getRowCount(), is(1));
}
 
开发者ID:eseifert,项目名称:gral,代码行数:8,代码来源:AbstractDataSourceTest.java


示例9: testRowStatisticsForDataSourceContainsRowForEachRowInDataSource

import de.erichseifert.gral.data.statistics.Statistics; //导入依赖的package包/类
@Test
public void testRowStatisticsForDataSourceContainsRowForEachRowInDataSource() {
	int rowCount = 3;
	source = new StubAbstractDataSource(5, rowCount);
	DataSource rowStatistics = source.getRowStatistics(Statistics.N);
	assertThat(rowStatistics.getRowCount(), is(rowCount));
}
 
开发者ID:eseifert,项目名称:gral,代码行数:8,代码来源:AbstractDataSourceTest.java


示例10: testSerialization

import de.erichseifert.gral.data.statistics.Statistics; //导入依赖的package包/类
@Test
public void testSerialization() throws IOException, ClassNotFoundException {
	DataSource original = new EnumeratedData(table);
	DataSource deserialized = TestUtils.serializeAndDeserialize(original);

   	// Test metadata
   	assertArrayEquals(original.getColumnTypes(), deserialized.getColumnTypes());
   	assertEquals(original.getColumnCount(), deserialized.getColumnCount());
   	assertEquals(original.getRowCount(), deserialized.getRowCount());

	// Test values
   	for (int row = 0; row < original.getRowCount(); row++) {
       	for (int col = 0; col < original.getColumnCount(); col++) {
           	assertEquals(
       			String.format("Wrong data at col=%d, row=%d.", col, row),
       			original.get(col, row), deserialized.get(col, row));
       	}
   	}

   	// Test statistics
   	String[] stats = { Statistics.N, Statistics.SUM, Statistics.MEAN, Statistics.VARIANCE };
   	for (String stat : stats) {
   		assertEquals(
			original.getStatistics().get(stat),
			deserialized.getStatistics().get(stat),
			DELTA);
	}
   }
 
开发者ID:eseifert,项目名称:gral,代码行数:29,代码来源:EnumeratedDataTest.java


示例11: testSerialization

import de.erichseifert.gral.data.statistics.Statistics; //导入依赖的package包/类
@Test
public void testSerialization() throws IOException, ClassNotFoundException {
	DataSource original = new DummyData(2, 3, "foobar");
	DataSource deserialized = TestUtils.serializeAndDeserialize(original);

   	// Test metadata
   	assertArrayEquals(original.getColumnTypes(), deserialized.getColumnTypes());
   	assertEquals(original.getColumnCount(), deserialized.getColumnCount());
   	assertEquals(original.getRowCount(), deserialized.getRowCount());

	// Test values
   	for (int row = 0; row < original.getRowCount(); row++) {
       	for (int col = 0; col < original.getColumnCount(); col++) {
           	assertEquals(
       			String.format("Wrong data at col=%d, row=%d.", col, row),
       			original.get(col, row), deserialized.get(col, row));
       	}
   	}

   	// Test statistics
   	String[] stats = { Statistics.N, Statistics.SUM, Statistics.MEAN, Statistics.VARIANCE };
   	for (String stat : stats) {
   		assertEquals(
			original.getStatistics().get(stat),
			deserialized.getStatistics().get(stat),
			DELTA);
	}
   }
 
开发者ID:eseifert,项目名称:gral,代码行数:29,代码来源:DummyDataTest.java


示例12: testStatistics

import de.erichseifert.gral.data.statistics.Statistics; //导入依赖的package包/类
@Test
public void testStatistics() {
	assertEquals( 8.0, col2.getStatistics(Statistics.N),   DELTA);
	assertEquals( 1.0, col2.getStatistics(Statistics.MIN), DELTA);
	assertEquals(11.0, col2.getStatistics(Statistics.MAX), DELTA);
	assertEquals(44.0, col2.getStatistics(Statistics.SUM), DELTA);
}
 
开发者ID:eseifert,项目名称:gral,代码行数:8,代码来源:ColumnTest.java


示例13: testSerialization

import de.erichseifert.gral.data.statistics.Statistics; //导入依赖的package包/类
@Test
public void testSerialization() throws IOException, ClassNotFoundException {
	DataSource original = data;
	DataSource deserialized = TestUtils.serializeAndDeserialize(original);

   	// Test metadata
   	assertArrayEquals(original.getColumnTypes(), deserialized.getColumnTypes());
   	assertEquals(original.getColumnCount(), deserialized.getColumnCount());
   	assertEquals(original.getRowCount(), deserialized.getRowCount());

	// Test values
   	for (int row = 0; row < original.getRowCount(); row++) {
       	for (int col = 0; col < original.getColumnCount(); col++) {
           	assertEquals(
       			String.format("Wrong data at col=%d, row=%d.", col, row),
       			original.get(col, row), deserialized.get(col, row));
       	}
   	}

   	// Test statistics
   	String[] stats = { Statistics.N, Statistics.SUM, Statistics.MEAN, Statistics.VARIANCE };
   	for (String stat : stats) {
   		assertEquals(
			original.getStatistics().get(stat),
			deserialized.getStatistics().get(stat),
			DELTA);
	}
   }
 
开发者ID:eseifert,项目名称:gral,代码行数:29,代码来源:RowSubsetTest.java


示例14: testSerialization

import de.erichseifert.gral.data.statistics.Statistics; //导入依赖的package包/类
@Test
public void testSerialization() throws IOException, ClassNotFoundException {
	Filter2D original = new Resize(dataDiagonal, 2, 2);
	Filter2D deserialized = TestUtils.serializeAndDeserialize(original);

   	// Test metadata
   	assertEquals(original.getMode(), deserialized.getMode());
   	assertArrayEquals(original.getColumnTypes(), deserialized.getColumnTypes());
   	assertEquals(original.getColumnCount(), deserialized.getColumnCount());
   	assertEquals(original.getRowCount(), deserialized.getRowCount());

	// Test values
   	for (int row = 0; row < original.getRowCount(); row++) {
       	for (int col = 0; col < original.getColumnCount(); col++) {
           	assertEquals(
       			String.format("Wrong data at col=%d, row=%d.", col, row),
       			original.get(col, row), deserialized.get(col, row));
       	}
   	}

   	// Test statistics
   	String[] stats = { Statistics.N, Statistics.SUM, Statistics.MEAN, Statistics.VARIANCE };
   	for (String stat : stats) {
   		assertEquals(
			original.getStatistics().get(stat),
			deserialized.getStatistics().get(stat),
			DELTA);
	}
   }
 
开发者ID:eseifert,项目名称:gral,代码行数:30,代码来源:ResizeTest.java


示例15: testSerialization

import de.erichseifert.gral.data.statistics.Statistics; //导入依赖的package包/类
@Test
public void testSerialization() throws IOException, ClassNotFoundException {
	Filter2D original = new Median(table, 3, 1, Filter2D.Mode.REPEAT, 0);
	Filter2D deserialized = TestUtils.serializeAndDeserialize(original);

   	// Test metadata
   	assertEquals(original.getMode(), deserialized.getMode());
   	assertArrayEquals(original.getColumnTypes(), deserialized.getColumnTypes());
   	assertEquals(original.getColumnCount(), deserialized.getColumnCount());
   	assertEquals(original.getRowCount(), deserialized.getRowCount());

	// Test values
   	for (int row = 0; row < original.getRowCount(); row++) {
       	for (int col = 0; col < original.getColumnCount(); col++) {
           	assertEquals(
       			String.format("Wrong data at col=%d, row=%d.", col, row),
       			original.get(col, row), deserialized.get(col, row));
       	}
   	}

   	// Test statistics
   	String[] stats = { Statistics.N, Statistics.SUM, Statistics.MEAN, Statistics.VARIANCE };
   	for (String stat : stats) {
   		assertEquals(
			original.getStatistics().get(stat),
			deserialized.getStatistics().get(stat),
			DELTA);
	}
   }
 
开发者ID:eseifert,项目名称:gral,代码行数:30,代码来源:MedianTest.java


示例16: testSerialization

import de.erichseifert.gral.data.statistics.Statistics; //导入依赖的package包/类
@Test
public void testSerialization() throws IOException, ClassNotFoundException {
	Convolution original = new Convolution(table, kernel, Filter2D.Mode.ZERO, 0, 1);
	Convolution deserialized = TestUtils.serializeAndDeserialize(original);

   	// Test metadata
   	assertEquals(original.getKernel().size(), deserialized.getKernel().size());
   	assertEquals(original.getMode(), deserialized.getMode());
   	assertArrayEquals(original.getColumnTypes(), deserialized.getColumnTypes());
   	assertEquals(original.getColumnCount(), deserialized.getColumnCount());
   	assertEquals(original.getRowCount(), deserialized.getRowCount());

	// Test values
   	for (int row = 0; row < original.getRowCount(); row++) {
       	for (int col = 0; col < original.getColumnCount(); col++) {
           	assertEquals(
       			String.format("Wrong data at col=%d, row=%d.", col, row),
       			original.get(col, row), deserialized.get(col, row));
       	}
   	}

   	// Test statistics
   	String[] stats = { Statistics.N, Statistics.SUM, Statistics.MEAN, Statistics.VARIANCE };
   	for (String stat : stats) {
   		assertEquals(
			original.getStatistics().get(stat),
			deserialized.getStatistics().get(stat),
			DELTA);
	}
   }
 
开发者ID:eseifert,项目名称:gral,代码行数:31,代码来源:ConvolutionTest.java


示例17: testSerialization

import de.erichseifert.gral.data.statistics.Statistics; //导入依赖的package包/类
@Test
public void testSerialization() throws IOException, ClassNotFoundException {
	DataSource original = table;
	DataSource deserialized = TestUtils.serializeAndDeserialize(original);

   	// Test metadata
   	assertArrayEquals(original.getColumnTypes(), deserialized.getColumnTypes());
   	assertEquals(original.getColumnCount(), deserialized.getColumnCount());
   	assertEquals(original.getRowCount(), deserialized.getRowCount());

	// Test values
   	for (int row = 0; row < original.getRowCount(); row++) {
       	for (int col = 0; col < original.getColumnCount(); col++) {
           	assertEquals(
       			String.format("Wrong data at col=%d, row=%d.", col, row),
       			original.get(col, row), deserialized.get(col, row));
       	}
   	}

   	// Test statistics
   	String[] stats = { Statistics.N, Statistics.SUM, Statistics.MEAN, Statistics.VARIANCE };
   	for (String stat : stats) {
   		assertEquals(
			original.getStatistics().get(stat),
			deserialized.getStatistics().get(stat),
			DELTA);
	}
   }
 
开发者ID:eseifert,项目名称:gral,代码行数:29,代码来源:DataTableTest.java


示例18: testStatistics

import de.erichseifert.gral.data.statistics.Statistics; //导入依赖的package包/类
@Test
public void testStatistics() {
	Row row1 = new Row(table, 1);
	assertEquals( 2.0, row1.getStatistics(Statistics.N),   DELTA);
	assertEquals( 2.0, row1.getStatistics(Statistics.MIN), DELTA);
	assertEquals( 3.0, row1.getStatistics(Statistics.MAX), DELTA);
	assertEquals( 5.0, row1.getStatistics(Statistics.SUM), DELTA);
}
 
开发者ID:eseifert,项目名称:gral,代码行数:9,代码来源:RowTest.java


示例19: updatePlot

import de.erichseifert.gral.data.statistics.Statistics; //导入依赖的package包/类
/**
 * Update real time plot.
 * 
 * Title is changed to match current data. The x-axis and range are also
 * dynamically updated.
 * @param x the x location on the plot
 * @param y the y location on the plot
 */
public void updatePlot(long x, double y) {
    double min;
    
    if(y > yMax) {
        yMax = (int) y;
    }
    
    plot.setSetting(BarPlot.TITLE, title + ": " + y);
    data.add(x, y);

    if (data.getRowCount() > bufSize) {
        data.remove(0);
    }

    min = data.getColumn(0).getStatistics(Statistics.MIN);

    plot.getAxisRenderer(XYPlot.AXIS_X).setSetting(
            AxisRenderer.TICKS_SPACING,
            (x - min) / bufSize);
    plot.getAxis(XYPlot.AXIS_X).setRange(min, x);
    plot.getAxis(XYPlot.AXIS_Y).setRange(0, yMax + (yMax * .20));

    if (this.isVisible()) {
        this.repaint();
    }
}
 
开发者ID:anthonyjchriste,项目名称:knowledge-is-power,代码行数:35,代码来源:RealTimePlot.java


示例20: createRasterData

import de.erichseifert.gral.data.statistics.Statistics; //导入依赖的package包/类
/**
 * Takes a matrix of values and creates a new data source that stores the
 * values in (x, y, value) format.
 * @param data Original data source with values in each cell.
 * @return New data source with (x, y, value) columns
 */
@SuppressWarnings("unchecked")
public static DataSource createRasterData(DataSource data) {
	if (data == null) {
		throw new NullPointerException("Cannot convert null data source.");
	}

	DataTable coordsValueData =
		new DataTable(Double.class, Double.class, Double.class);

	// Generate pixel data with (x, y, value)
	Statistics stats = data.getStatistics();
	double min = stats.get(Statistics.MIN);
	double max = stats.get(Statistics.MAX);
	double range = max - min;
	int i = 0;
	for (Comparable<?> cell : data) {
		int x =  i%data.getColumnCount();
		int y = -i/data.getColumnCount();
		double v = Double.NaN;
		if (cell instanceof Number) {
			Number numericCell = (Number) cell;
			v = (numericCell.doubleValue() - min) / range;
		}
		coordsValueData.add((double) x, (double) y, v);
		i++;
	}
	return coordsValueData;
}
 
开发者ID:charles-cooper,项目名称:idylfin,代码行数:35,代码来源:RasterPlot.java



注:本文中的de.erichseifert.gral.data.statistics.Statistics类示例整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。


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