Example usage for java.lang Number doubleValue

Introduction

In this page you can find the example usage for java.lang Number doubleValue.

Prototype

public abstract double doubleValue();

Source Link

Document

Returns the value of the specified number as a double .

Usage

From source file:org.jfree.data.DataUtilities.java

/**
 * Returns a {@link KeyedValues} instance that contains the cumulative
 * percentage values for the data in another {@link KeyedValues} instance.
 * <p>/*w  ww . ja v  a 2s .  c  o m*/
 * The percentages are values between 0.0 and 1.0 (where 1.0 = 100%).
 *
 * @param data  the data (<code>null</code> not permitted).
 *
 * @return The cumulative percentages.
 */
public static KeyedValues getCumulativePercentages(KeyedValues data) {
    ParamChecks.nullNotPermitted(data, "data");
    DefaultKeyedValues result = new DefaultKeyedValues();
    double total = 0.0;
    for (int i = 0; i < data.getItemCount(); i++) {
        Number v = data.getValue(i);
        if (v != null) {
            total = total + v.doubleValue();
        }
    }
    double runningTotal = 0.0;
    for (int i = 0; i < data.getItemCount(); i++) {
        Number v = data.getValue(i);
        if (v != null) {
            runningTotal = runningTotal + v.doubleValue();
        }
        result.addValue(data.getKey(i), new Double(runningTotal / total));
    }
    return result;
}

From source file:org.jfree.data.DataUtils.java

/**
 * Returns a {@link KeyedValues} instance that contains the cumulative
 * percentage values for the data in another {@link KeyedValues} instance.
 * <p>//  ww  w  .  ja v  a 2  s.co m
 * The percentages are values between 0.0 and 1.0 (where 1.0 = 100%).
 *
 * @param data  the data ({@code null} not permitted).
 *
 * @return The cumulative percentages.
 */
public static KeyedValues getCumulativePercentages(KeyedValues data) {
    Args.nullNotPermitted(data, "data");
    DefaultKeyedValues result = new DefaultKeyedValues();
    double total = 0.0;
    for (int i = 0; i < data.getItemCount(); i++) {
        Number v = data.getValue(i);
        if (v != null) {
            total = total + v.doubleValue();
        }
    }
    double runningTotal = 0.0;
    for (int i = 0; i < data.getItemCount(); i++) {
        Number v = data.getValue(i);
        if (v != null) {
            runningTotal = runningTotal + v.doubleValue();
        }
        result.addValue(data.getKey(i), new Double(runningTotal / total));
    }
    return result;
}

From source file:org.jfree.data.DataUtilities.java

/**
 * Returns the total of the values in one row of the supplied data
 * table by taking only the column numbers in the array into account.
 *
 * @param data  the table of values (<code>null</code> not permitted).
 * @param row  the row index (zero-based).
 * @param validCols the array with valid cols (zero-based).
 *
 * @return The total of the valid values in the specified row.
 *
 * @since 1.0.13/*from w  ww . j  a v a 2 s .c  o  m*/
 */
public static double calculateRowTotal(Values2D data, int row, int[] validCols) {
    ParamChecks.nullNotPermitted(data, "data");
    double total = 0.0;
    int colCount = data.getColumnCount();
    for (int v = 0; v < validCols.length; v++) {
        int col = validCols[v];
        if (col < colCount) {
            Number n = data.getValue(row, col);
            if (n != null) {
                total += n.doubleValue();
            }
        }
    }
    return total;
}

From source file:org.jfree.data.DataUtils.java

/**
 * Returns the total of the values in one row of the supplied data
 * table by taking only the column numbers in the array into account.
 *
 * @param data  the table of values ({@code null} not permitted).
 * @param row  the row index (zero-based).
 * @param validCols the array with valid cols (zero-based).
 *
 * @return The total of the valid values in the specified row.
 *
 * @since 1.0.13//  w w w.  j a v  a2s  . co m
 */
public static double calculateRowTotal(Values2D data, int row, int[] validCols) {
    Args.nullNotPermitted(data, "data");
    double total = 0.0;
    int colCount = data.getColumnCount();
    for (int v = 0; v < validCols.length; v++) {
        int col = validCols[v];
        if (col < colCount) {
            Number n = data.getValue(row, col);
            if (n != null) {
                total += n.doubleValue();
            }
        }
    }
    return total;
}

From source file:org.jfree.data.DataUtilities.java

/**
 * Returns the total of the values in one column of the supplied data
 * table by taking only the row numbers in the array into account.
 *
 * @param data  the table of values (<code>null</code> not permitted).
 * @param column  the column index (zero-based).
 * @param validRows the array with valid rows (zero-based).
 *
 * @return The total of the valid values in the specified column.
 *
 * @since 1.0.13/*  w w w . j ava2s .  c o m*/
 */
public static double calculateColumnTotal(Values2D data, int column, int[] validRows) {
    ParamChecks.nullNotPermitted(data, "data");
    double total = 0.0;
    int rowCount = data.getRowCount();
    for (int v = 0; v < validRows.length; v++) {
        int row = validRows[v];
        if (row < rowCount) {
            Number n = data.getValue(row, column);
            if (n != null) {
                total += n.doubleValue();
            }
        }
    }
    return total;
}

From source file:org.jfree.data.DataUtils.java

/**
 * Returns the total of the values in one column of the supplied data
 * table by taking only the row numbers in the array into account.
 *
 * @param data  the table of values ({@code null} not permitted).
 * @param column  the column index (zero-based).
 * @param validRows the array with valid rows (zero-based).
 *
 * @return The total of the valid values in the specified column.
 *
 * @since 1.0.13//from   w  ww .j a  v  a2 s.c om
 */
public static double calculateColumnTotal(Values2D data, int column, int[] validRows) {
    Args.nullNotPermitted(data, "data");
    double total = 0.0;
    int rowCount = data.getRowCount();
    for (int v = 0; v < validRows.length; v++) {
        int row = validRows[v];
        if (row < rowCount) {
            Number n = data.getValue(row, column);
            if (n != null) {
                total += n.doubleValue();
            }
        }
    }
    return total;
}

From source file:gedi.util.MathUtils.java

/**
 * Throws an exception if n is either a real or to big to be represented by a byte.
 * @param n/* w w  w .j a  va  2s.  c  o  m*/
 * @return
 */
public static long longValueExact(Number n) {
    if (n instanceof Long || n instanceof Integer || n instanceof Short || n instanceof Byte)
        return n.longValue();
    double d = n.doubleValue();
    long l = n.longValue();
    if (d == (double) l) {
        return l;
    }
    throw new NumberFormatException();
}

From source file:edu.uci.ics.jung.algorithms.shortestpath.DistanceStatistics.java

/**
 * Returns the diameter of <code>g</code> using the metric 
 * specified by <code>d</code>.  The diameter is defined to be
 * the maximum, over all pairs of vertices <code>u,v</code>,
 * of the length of the shortest path from <code>u</code> to 
 * <code>v</code>.  If the graph is disconnected (that is, not 
 * all pairs of vertices are reachable from one another), the
 * value returned will depend on <code>use_max</code>:  
 * if <code>use_max == true</code>, the value returned
 * will be the the maximum shortest path length over all pairs of <b>connected</b> 
 * vertices; otherwise it will be <code>Double.POSITIVE_INFINITY</code>.
 *//*from  w  w  w  . ja va 2 s. co m*/
public static <V, E> double diameter(Hypergraph<V, E> g, Distance<V> d, boolean use_max) {
    double diameter = 0;
    Collection<V> vertices = g.getVertices();
    for (V v : vertices) {
        for (V w : vertices) {

            if (v.equals(w) == false) // don't include self-distances
            {
                Number dist = d.getDistance(v, w);
                if (dist == null) {
                    if (!use_max)
                        return Double.POSITIVE_INFINITY;
                } else
                    diameter = Math.max(diameter, dist.doubleValue());
            }
        }
    }
    return diameter;
}

From source file:com.bitsofproof.example.Simple.java

public static long parseBit(String s) throws ParseException {
    Number n = NumberFormat.getNumberInstance().parse(s);
    if (n instanceof Double) {
        return (long) (n.doubleValue() * 100.0);
    } else {/*from  ww  w  .j  a  v  a 2 s .  c o  m*/
        return n.longValue() * 100;
    }
}

From source file:io.appform.jsonrules.utils.ComparisonUtils.java

static int compare(JsonNode evaluatedNode, Object value) {
    int comparisonResult = 0;
    if (evaluatedNode.isNumber()) {
        if (Number.class.isAssignableFrom(value.getClass())) {
            Number nValue = (Number) value;
            if (evaluatedNode.isIntegralNumber()) {
                comparisonResult = Long.compare(evaluatedNode.asLong(), nValue.longValue());
            } else if (evaluatedNode.isFloatingPointNumber()) {
                comparisonResult = Double.compare(evaluatedNode.asDouble(), nValue.doubleValue());
            }/*from w w  w  .j a  v a2s  . c  o  m*/
        } else {
            throw new IllegalArgumentException("Type mismatch between operator and operand");
        }
    } else if (evaluatedNode.isBoolean()) {
        if (Boolean.class.isAssignableFrom(value.getClass())) {
            Boolean bValue = Boolean.parseBoolean(value.toString());
            comparisonResult = Boolean.compare(evaluatedNode.asBoolean(), bValue);
        } else {
            throw new IllegalArgumentException("Type mismatch between operator and operand");
        }

    } else if (evaluatedNode.isTextual()) {
        if (String.class.isAssignableFrom(value.getClass())) {
            comparisonResult = evaluatedNode.asText().compareTo(String.valueOf(value));
        } else {
            throw new IllegalArgumentException("Type mismatch between operator and operand");
        }
    } else if (evaluatedNode.isObject()) {
        throw new IllegalArgumentException("Object comparisons not supported");
    }
    return comparisonResult;
}