Java Code Examples for org.jfree.data.xy.IntervalXYDataset#getStartXValue()
The following examples show how to use
org.jfree.data.xy.IntervalXYDataset#getStartXValue() .
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Example 1
| Source File: ClusteredXYBarRenderer.java From astor with GNU General Public License v2.0 | 5 votes |
|
/**
* Iterates over the items in an {@link IntervalXYDataset} to find
* the range of x-values including the interval OFFSET so that it centers
* the interval around the start value.
*
* @param dataset the dataset (<code>null</code> not permitted).
*
* @return The range (possibly <code>null</code>).
*/
protected Range findDomainBoundsWithOffset(IntervalXYDataset dataset) {
if (dataset == null) {
throw new IllegalArgumentException("Null 'dataset' argument.");
}
double minimum = Double.POSITIVE_INFINITY;
double maximum = Double.NEGATIVE_INFINITY;
int seriesCount = dataset.getSeriesCount();
double lvalue;
double uvalue;
for (int series = 0; series < seriesCount; series++) {
int itemCount = dataset.getItemCount(series);
for (int item = 0; item < itemCount; item++) {
lvalue = dataset.getStartXValue(series, item);
uvalue = dataset.getEndXValue(series, item);
double offset = (uvalue - lvalue) / 2.0;
lvalue = lvalue - offset;
uvalue = uvalue - offset;
minimum = Math.min(minimum, lvalue);
maximum = Math.max(maximum, uvalue);
}
}
if (minimum > maximum) {
return null;
}
else {
return new Range(minimum, maximum);
}
}
Example 2
| Source File: ClusteredXYBarRenderer.java From SIMVA-SoS with Apache License 2.0 | 5 votes |
|
/**
* Iterates over the items in an {@link IntervalXYDataset} to find
* the range of x-values including the interval OFFSET so that it centers
* the interval around the start value.
*
* @param dataset the dataset (<code>null</code> not permitted).
*
* @return The range (possibly <code>null</code>).
*/
protected Range findDomainBoundsWithOffset(IntervalXYDataset dataset) {
ParamChecks.nullNotPermitted(dataset, "dataset");
double minimum = Double.POSITIVE_INFINITY;
double maximum = Double.NEGATIVE_INFINITY;
int seriesCount = dataset.getSeriesCount();
double lvalue;
double uvalue;
for (int series = 0; series < seriesCount; series++) {
int itemCount = dataset.getItemCount(series);
for (int item = 0; item < itemCount; item++) {
lvalue = dataset.getStartXValue(series, item);
uvalue = dataset.getEndXValue(series, item);
double offset = (uvalue - lvalue) / 2.0;
lvalue = lvalue - offset;
uvalue = uvalue - offset;
minimum = Math.min(minimum, lvalue);
maximum = Math.max(maximum, uvalue);
}
}
if (minimum > maximum) {
return null;
}
else {
return new Range(minimum, maximum);
}
}
Example 3
| Source File: ClusteredXYBarRenderer.java From astor with GNU General Public License v2.0 | 5 votes |
|
/**
* Iterates over the items in an {@link IntervalXYDataset} to find
* the range of x-values including the interval OFFSET so that it centers
* the interval around the start value.
*
* @param dataset the dataset (<code>null</code> not permitted).
*
* @return The range (possibly <code>null</code>).
*/
protected Range findDomainBoundsWithOffset(IntervalXYDataset dataset) {
if (dataset == null) {
throw new IllegalArgumentException("Null 'dataset' argument.");
}
double minimum = Double.POSITIVE_INFINITY;
double maximum = Double.NEGATIVE_INFINITY;
int seriesCount = dataset.getSeriesCount();
double lvalue;
double uvalue;
for (int series = 0; series < seriesCount; series++) {
int itemCount = dataset.getItemCount(series);
for (int item = 0; item < itemCount; item++) {
lvalue = dataset.getStartXValue(series, item);
uvalue = dataset.getEndXValue(series, item);
double offset = (uvalue - lvalue) / 2.0;
lvalue = lvalue - offset;
uvalue = uvalue - offset;
minimum = Math.min(minimum, lvalue);
maximum = Math.max(maximum, uvalue);
}
}
if (minimum > maximum) {
return null;
}
else {
return new Range(minimum, maximum);
}
}
Example 4
| Source File: ClusteredXYBarRenderer.java From ECG-Viewer with GNU General Public License v2.0 | 5 votes |
|
/**
* Iterates over the items in an {@link IntervalXYDataset} to find
* the range of x-values including the interval OFFSET so that it centers
* the interval around the start value.
*
* @param dataset the dataset (<code>null</code> not permitted).
*
* @return The range (possibly <code>null</code>).
*/
protected Range findDomainBoundsWithOffset(IntervalXYDataset dataset) {
ParamChecks.nullNotPermitted(dataset, "dataset");
double minimum = Double.POSITIVE_INFINITY;
double maximum = Double.NEGATIVE_INFINITY;
int seriesCount = dataset.getSeriesCount();
double lvalue;
double uvalue;
for (int series = 0; series < seriesCount; series++) {
int itemCount = dataset.getItemCount(series);
for (int item = 0; item < itemCount; item++) {
lvalue = dataset.getStartXValue(series, item);
uvalue = dataset.getEndXValue(series, item);
double offset = (uvalue - lvalue) / 2.0;
lvalue = lvalue - offset;
uvalue = uvalue - offset;
minimum = Math.min(minimum, lvalue);
maximum = Math.max(maximum, uvalue);
}
}
if (minimum > maximum) {
return null;
}
else {
return new Range(minimum, maximum);
}
}
Example 5
| Source File: ClusteredXYBarRenderer.java From buffer_bci with GNU General Public License v3.0 | 5 votes |
|
/**
* Iterates over the items in an {@link IntervalXYDataset} to find
* the range of x-values including the interval OFFSET so that it centers
* the interval around the start value.
*
* @param dataset the dataset (<code>null</code> not permitted).
*
* @return The range (possibly <code>null</code>).
*/
protected Range findDomainBoundsWithOffset(IntervalXYDataset dataset) {
ParamChecks.nullNotPermitted(dataset, "dataset");
double minimum = Double.POSITIVE_INFINITY;
double maximum = Double.NEGATIVE_INFINITY;
int seriesCount = dataset.getSeriesCount();
double lvalue;
double uvalue;
for (int series = 0; series < seriesCount; series++) {
int itemCount = dataset.getItemCount(series);
for (int item = 0; item < itemCount; item++) {
lvalue = dataset.getStartXValue(series, item);
uvalue = dataset.getEndXValue(series, item);
double offset = (uvalue - lvalue) / 2.0;
lvalue = lvalue - offset;
uvalue = uvalue - offset;
minimum = Math.min(minimum, lvalue);
maximum = Math.max(maximum, uvalue);
}
}
if (minimum > maximum) {
return null;
}
else {
return new Range(minimum, maximum);
}
}
Example 6
| Source File: ClusteredXYBarRenderer.java From openstock with GNU General Public License v3.0 | 5 votes |
|
/**
* Iterates over the items in an {@link IntervalXYDataset} to find
* the range of x-values including the interval OFFSET so that it centers
* the interval around the start value.
*
* @param dataset the dataset (<code>null</code> not permitted).
*
* @return The range (possibly <code>null</code>).
*/
protected Range findDomainBoundsWithOffset(IntervalXYDataset dataset) {
ParamChecks.nullNotPermitted(dataset, "dataset");
double minimum = Double.POSITIVE_INFINITY;
double maximum = Double.NEGATIVE_INFINITY;
int seriesCount = dataset.getSeriesCount();
double lvalue;
double uvalue;
for (int series = 0; series < seriesCount; series++) {
int itemCount = dataset.getItemCount(series);
for (int item = 0; item < itemCount; item++) {
lvalue = dataset.getStartXValue(series, item);
uvalue = dataset.getEndXValue(series, item);
double offset = (uvalue - lvalue) / 2.0;
lvalue = lvalue - offset;
uvalue = uvalue - offset;
minimum = Math.min(minimum, lvalue);
maximum = Math.max(maximum, uvalue);
}
}
if (minimum > maximum) {
return null;
}
else {
return new Range(minimum, maximum);
}
}
Example 7
| Source File: JGenProg2017_0047_s.java From coming with MIT License | 4 votes |
|
/**
* Finds the minimum domain (or X) value for the specified dataset. This
* is easy if the dataset implements the {@link DomainInfo} interface (a
* good idea if there is an efficient way to determine the minimum value).
* Otherwise, it involves iterating over the entire data-set.
* <p>
* Returns <code>null</code> if all the data values in the dataset are
* <code>null</code>.
*
* @param dataset the dataset (<code>null</code> not permitted).
*
* @return The minimum value (possibly <code>null</code>).
*/
public static Number findMinimumDomainValue(XYDataset dataset) {
if (dataset == null) {
throw new IllegalArgumentException("Null 'dataset' argument.");
}
Number result = null;
// if the dataset implements DomainInfo, life is easy
if (dataset instanceof DomainInfo) {
DomainInfo info = (DomainInfo) dataset;
return new Double(info.getDomainLowerBound(true));
}
else {
double minimum = Double.POSITIVE_INFINITY;
int seriesCount = dataset.getSeriesCount();
for (int series = 0; series < seriesCount; series++) {
int itemCount = dataset.getItemCount(series);
for (int item = 0; item < itemCount; item++) {
double value;
if (dataset instanceof IntervalXYDataset) {
IntervalXYDataset intervalXYData
= (IntervalXYDataset) dataset;
value = intervalXYData.getStartXValue(series, item);
}
else {
value = dataset.getXValue(series, item);
}
if (!Double.isNaN(value)) {
minimum = Math.min(minimum, value);
}
}
}
if (minimum == Double.POSITIVE_INFINITY) {
result = null;
}
else {
result = new Double(minimum);
}
}
return result;
}
Example 8
| Source File: DatasetUtilities.java From astor with GNU General Public License v2.0 | 4 votes |
|
/**
* Finds the minimum domain (or X) value for the specified dataset. This
* is easy if the dataset implements the {@link DomainInfo} interface (a
* good idea if there is an efficient way to determine the minimum value).
* Otherwise, it involves iterating over the entire data-set.
* <p>
* Returns <code>null</code> if all the data values in the dataset are
* <code>null</code>.
*
* @param dataset the dataset (<code>null</code> not permitted).
*
* @return The minimum value (possibly <code>null</code>).
*/
public static Number findMinimumDomainValue(XYDataset dataset) {
if (dataset == null) {
throw new IllegalArgumentException("Null 'dataset' argument.");
}
Number result = null;
// if the dataset implements DomainInfo, life is easy
if (dataset instanceof DomainInfo) {
DomainInfo info = (DomainInfo) dataset;
return new Double(info.getDomainLowerBound(true));
}
else {
double minimum = Double.POSITIVE_INFINITY;
int seriesCount = dataset.getSeriesCount();
for (int series = 0; series < seriesCount; series++) {
int itemCount = dataset.getItemCount(series);
for (int item = 0; item < itemCount; item++) {
double value;
if (dataset instanceof IntervalXYDataset) {
IntervalXYDataset intervalXYData
= (IntervalXYDataset) dataset;
value = intervalXYData.getStartXValue(series, item);
}
else {
value = dataset.getXValue(series, item);
}
if (!Double.isNaN(value)) {
minimum = Math.min(minimum, value);
}
}
}
if (minimum == Double.POSITIVE_INFINITY) {
result = null;
}
else {
result = new Double(minimum);
}
}
return result;
}
Example 9
| Source File: DatasetUtilities.java From astor with GNU General Public License v2.0 | 4 votes |
|
/**
* Finds the minimum domain (or X) value for the specified dataset. This
* is easy if the dataset implements the {@link DomainInfo} interface (a
* good idea if there is an efficient way to determine the minimum value).
* Otherwise, it involves iterating over the entire data-set.
* <p>
* Returns <code>null</code> if all the data values in the dataset are
* <code>null</code>.
*
* @param dataset the dataset (<code>null</code> not permitted).
*
* @return The minimum value (possibly <code>null</code>).
*/
public static Number findMinimumDomainValue(XYDataset dataset) {
if (dataset == null) {
throw new IllegalArgumentException("Null 'dataset' argument.");
}
Number result = null;
// if the dataset implements DomainInfo, life is easy
if (dataset instanceof DomainInfo) {
DomainInfo info = (DomainInfo) dataset;
return new Double(info.getDomainLowerBound(true));
}
else {
double minimum = Double.POSITIVE_INFINITY;
int seriesCount = dataset.getSeriesCount();
for (int series = 0; series < seriesCount; series++) {
int itemCount = dataset.getItemCount(series);
for (int item = 0; item < itemCount; item++) {
double value;
if (dataset instanceof IntervalXYDataset) {
IntervalXYDataset intervalXYData
= (IntervalXYDataset) dataset;
value = intervalXYData.getStartXValue(series, item);
}
else {
value = dataset.getXValue(series, item);
}
if (!Double.isNaN(value)) {
minimum = Math.min(minimum, value);
}
}
}
if (minimum == Double.POSITIVE_INFINITY) {
result = null;
}
else {
result = new Double(minimum);
}
}
return result;
}
Example 10
| Source File: DatasetUtilities.java From ECG-Viewer with GNU General Public License v2.0 | 4 votes |
|
/**
* Finds the minimum domain (or X) value for the specified dataset. This
* is easy if the dataset implements the {@link DomainInfo} interface (a
* good idea if there is an efficient way to determine the minimum value).
* Otherwise, it involves iterating over the entire data-set.
* <p>
* Returns <code>null</code> if all the data values in the dataset are
* <code>null</code>.
*
* @param dataset the dataset (<code>null</code> not permitted).
*
* @return The minimum value (possibly <code>null</code>).
*/
public static Number findMinimumDomainValue(XYDataset dataset) {
ParamChecks.nullNotPermitted(dataset, "dataset");
Number result;
// if the dataset implements DomainInfo, life is easy
if (dataset instanceof DomainInfo) {
DomainInfo info = (DomainInfo) dataset;
return new Double(info.getDomainLowerBound(true));
}
else {
double minimum = Double.POSITIVE_INFINITY;
int seriesCount = dataset.getSeriesCount();
for (int series = 0; series < seriesCount; series++) {
int itemCount = dataset.getItemCount(series);
for (int item = 0; item < itemCount; item++) {
double value;
if (dataset instanceof IntervalXYDataset) {
IntervalXYDataset intervalXYData
= (IntervalXYDataset) dataset;
value = intervalXYData.getStartXValue(series, item);
}
else {
value = dataset.getXValue(series, item);
}
if (!Double.isNaN(value)) {
minimum = Math.min(minimum, value);
}
}
}
if (minimum == Double.POSITIVE_INFINITY) {
result = null;
}
else {
result = new Double(minimum);
}
}
return result;
}
Example 11
| Source File: Chart_2_DatasetUtilities_t.java From coming with MIT License | 4 votes |
|
/**
* Finds the minimum domain (or X) value for the specified dataset. This
* is easy if the dataset implements the {@link DomainInfo} interface (a
* good idea if there is an efficient way to determine the minimum value).
* Otherwise, it involves iterating over the entire data-set.
* <p>
* Returns <code>null</code> if all the data values in the dataset are
* <code>null</code>.
*
* @param dataset the dataset (<code>null</code> not permitted).
*
* @return The minimum value (possibly <code>null</code>).
*/
public static Number findMinimumDomainValue(XYDataset dataset) {
if (dataset == null) {
throw new IllegalArgumentException("Null 'dataset' argument.");
}
Number result = null;
// if the dataset implements DomainInfo, life is easy
if (dataset instanceof DomainInfo) {
DomainInfo info = (DomainInfo) dataset;
return new Double(info.getDomainLowerBound(true));
}
else {
double minimum = Double.POSITIVE_INFINITY;
int seriesCount = dataset.getSeriesCount();
for (int series = 0; series < seriesCount; series++) {
int itemCount = dataset.getItemCount(series);
for (int item = 0; item < itemCount; item++) {
double value;
if (dataset instanceof IntervalXYDataset) {
IntervalXYDataset intervalXYData
= (IntervalXYDataset) dataset;
value = intervalXYData.getStartXValue(series, item);
}
else {
value = dataset.getXValue(series, item);
}
if (!Double.isNaN(value)) {
minimum = Math.min(minimum, value);
}
}
}
if (minimum == Double.POSITIVE_INFINITY) {
result = null;
}
else {
result = new Double(minimum);
}
}
return result;
}
Example 12
| Source File: JGenProg2017_0047_t.java From coming with MIT License | 4 votes |
|
/**
* Finds the minimum domain (or X) value for the specified dataset. This
* is easy if the dataset implements the {@link DomainInfo} interface (a
* good idea if there is an efficient way to determine the minimum value).
* Otherwise, it involves iterating over the entire data-set.
* <p>
* Returns <code>null</code> if all the data values in the dataset are
* <code>null</code>.
*
* @param dataset the dataset (<code>null</code> not permitted).
*
* @return The minimum value (possibly <code>null</code>).
*/
public static Number findMinimumDomainValue(XYDataset dataset) {
if (dataset == null) {
throw new IllegalArgumentException("Null 'dataset' argument.");
}
Number result = null;
// if the dataset implements DomainInfo, life is easy
if (dataset instanceof DomainInfo) {
DomainInfo info = (DomainInfo) dataset;
return new Double(info.getDomainLowerBound(true));
}
else {
double minimum = Double.POSITIVE_INFINITY;
int seriesCount = dataset.getSeriesCount();
for (int series = 0; series < seriesCount; series++) {
int itemCount = dataset.getItemCount(series);
for (int item = 0; item < itemCount; item++) {
double value;
if (dataset instanceof IntervalXYDataset) {
IntervalXYDataset intervalXYData
= (IntervalXYDataset) dataset;
value = intervalXYData.getStartXValue(series, item);
}
else {
value = dataset.getXValue(series, item);
}
if (!Double.isNaN(value)) {
minimum = Math.min(minimum, value);
}
}
}
if (minimum == Double.POSITIVE_INFINITY) {
result = null;
}
else {
result = new Double(minimum);
}
}
return result;
}
Example 13
| Source File: Cardumen_00194_s.java From coming with MIT License | 4 votes |
|
/**
* Finds the minimum domain (or X) value for the specified dataset. This
* is easy if the dataset implements the {@link DomainInfo} interface (a
* good idea if there is an efficient way to determine the minimum value).
* Otherwise, it involves iterating over the entire data-set.
* <p>
* Returns <code>null</code> if all the data values in the dataset are
* <code>null</code>.
*
* @param dataset the dataset (<code>null</code> not permitted).
*
* @return The minimum value (possibly <code>null</code>).
*/
public static Number findMinimumDomainValue(XYDataset dataset) {
if (dataset == null) {
throw new IllegalArgumentException("Null 'dataset' argument.");
}
Number result = null;
// if the dataset implements DomainInfo, life is easy
if (dataset instanceof DomainInfo) {
DomainInfo info = (DomainInfo) dataset;
return new Double(info.getDomainLowerBound(true));
}
else {
double minimum = Double.POSITIVE_INFINITY;
int seriesCount = dataset.getSeriesCount();
for (int series = 0; series < seriesCount; series++) {
int itemCount = dataset.getItemCount(series);
for (int item = 0; item < itemCount; item++) {
double value;
if (dataset instanceof IntervalXYDataset) {
IntervalXYDataset intervalXYData
= (IntervalXYDataset) dataset;
value = intervalXYData.getStartXValue(series, item);
}
else {
value = dataset.getXValue(series, item);
}
if (!Double.isNaN(value)) {
minimum = Math.min(minimum, value);
}
}
}
if (minimum == Double.POSITIVE_INFINITY) {
result = null;
}
else {
result = new Double(minimum);
}
}
return result;
}
Example 14
| Source File: Cardumen_00194_t.java From coming with MIT License | 4 votes |
|
/**
* Finds the minimum domain (or X) value for the specified dataset. This
* is easy if the dataset implements the {@link DomainInfo} interface (a
* good idea if there is an efficient way to determine the minimum value).
* Otherwise, it involves iterating over the entire data-set.
* <p>
* Returns <code>null</code> if all the data values in the dataset are
* <code>null</code>.
*
* @param dataset the dataset (<code>null</code> not permitted).
*
* @return The minimum value (possibly <code>null</code>).
*/
public static Number findMinimumDomainValue(XYDataset dataset) {
if (dataset == null) {
throw new IllegalArgumentException("Null 'dataset' argument.");
}
Number result = null;
// if the dataset implements DomainInfo, life is easy
if (dataset instanceof DomainInfo) {
DomainInfo info = (DomainInfo) dataset;
return new Double(info.getDomainLowerBound(true));
}
else {
double minimum = Double.POSITIVE_INFINITY;
int seriesCount = dataset.getSeriesCount();
for (int series = 0; series < seriesCount; series++) {
int itemCount = dataset.getItemCount(series);
for (int item = 0; item < itemCount; item++) {
double value;
if (dataset instanceof IntervalXYDataset) {
IntervalXYDataset intervalXYData
= (IntervalXYDataset) dataset;
value = intervalXYData.getStartXValue(series, item);
}
else {
value = dataset.getXValue(series, item);
}
if (!Double.isNaN(value)) {
minimum = Math.min(minimum, value);
}
}
}
if (minimum == Double.POSITIVE_INFINITY) {
result = null;
}
else {
result = new Double(minimum);
}
}
return result;
}
Example 15
| Source File: Cardumen_0079_t.java From coming with MIT License | 4 votes |
|
/**
* Finds the minimum domain (or X) value for the specified dataset. This
* is easy if the dataset implements the {@link DomainInfo} interface (a
* good idea if there is an efficient way to determine the minimum value).
* Otherwise, it involves iterating over the entire data-set.
* <p>
* Returns <code>null</code> if all the data values in the dataset are
* <code>null</code>.
*
* @param dataset the dataset (<code>null</code> not permitted).
*
* @return The minimum value (possibly <code>null</code>).
*/
public static Number findMinimumDomainValue(XYDataset dataset) {
if (dataset == null) {
throw new IllegalArgumentException("Null 'dataset' argument.");
}
Number result = null;
// if the dataset implements DomainInfo, life is easy
if (dataset instanceof DomainInfo) {
DomainInfo info = (DomainInfo) dataset;
return new Double(info.getDomainLowerBound(true));
}
else {
double minimum = Double.POSITIVE_INFINITY;
int seriesCount = dataset.getSeriesCount();
for (int series = 0; series < seriesCount; series++) {
int itemCount = dataset.getItemCount(series);
for (int item = 0; item < itemCount; item++) {
double value;
if (dataset instanceof IntervalXYDataset) {
IntervalXYDataset intervalXYData
= (IntervalXYDataset) dataset;
value = intervalXYData.getStartXValue(series, item);
}
else {
value = dataset.getXValue(series, item);
}
if (!Double.isNaN(value)) {
minimum = Math.min(minimum, value);
}
}
}
if (minimum == Double.POSITIVE_INFINITY) {
result = null;
}
else {
result = new Double(minimum);
}
}
return result;
}
Example 16
| Source File: Cardumen_0079_s.java From coming with MIT License | 4 votes |
|
/**
* Finds the minimum domain (or X) value for the specified dataset. This
* is easy if the dataset implements the {@link DomainInfo} interface (a
* good idea if there is an efficient way to determine the minimum value).
* Otherwise, it involves iterating over the entire data-set.
* <p>
* Returns <code>null</code> if all the data values in the dataset are
* <code>null</code>.
*
* @param dataset the dataset (<code>null</code> not permitted).
*
* @return The minimum value (possibly <code>null</code>).
*/
public static Number findMinimumDomainValue(XYDataset dataset) {
if (dataset == null) {
throw new IllegalArgumentException("Null 'dataset' argument.");
}
Number result = null;
// if the dataset implements DomainInfo, life is easy
if (dataset instanceof DomainInfo) {
DomainInfo info = (DomainInfo) dataset;
return new Double(info.getDomainLowerBound(true));
}
else {
double minimum = Double.POSITIVE_INFINITY;
int seriesCount = dataset.getSeriesCount();
for (int series = 0; series < seriesCount; series++) {
int itemCount = dataset.getItemCount(series);
for (int item = 0; item < itemCount; item++) {
double value;
if (dataset instanceof IntervalXYDataset) {
IntervalXYDataset intervalXYData
= (IntervalXYDataset) dataset;
value = intervalXYData.getStartXValue(series, item);
}
else {
value = dataset.getXValue(series, item);
}
if (!Double.isNaN(value)) {
minimum = Math.min(minimum, value);
}
}
}
if (minimum == Double.POSITIVE_INFINITY) {
result = null;
}
else {
result = new Double(minimum);
}
}
return result;
}
Example 17
| Source File: DatasetUtilities.java From SIMVA-SoS with Apache License 2.0 | 4 votes |
|
/**
* Finds the minimum domain (or X) value for the specified dataset. This
* is easy if the dataset implements the {@link DomainInfo} interface (a
* good idea if there is an efficient way to determine the minimum value).
* Otherwise, it involves iterating over the entire data-set.
* <p>
* Returns <code>null</code> if all the data values in the dataset are
* <code>null</code>.
*
* @param dataset the dataset (<code>null</code> not permitted).
*
* @return The minimum value (possibly <code>null</code>).
*/
public static Number findMinimumDomainValue(XYDataset dataset) {
ParamChecks.nullNotPermitted(dataset, "dataset");
Number result;
// if the dataset implements DomainInfo, life is easy
if (dataset instanceof DomainInfo) {
DomainInfo info = (DomainInfo) dataset;
return new Double(info.getDomainLowerBound(true));
}
else {
double minimum = Double.POSITIVE_INFINITY;
int seriesCount = dataset.getSeriesCount();
for (int series = 0; series < seriesCount; series++) {
int itemCount = dataset.getItemCount(series);
for (int item = 0; item < itemCount; item++) {
double value;
if (dataset instanceof IntervalXYDataset) {
IntervalXYDataset intervalXYData
= (IntervalXYDataset) dataset;
value = intervalXYData.getStartXValue(series, item);
}
else {
value = dataset.getXValue(series, item);
}
if (!Double.isNaN(value)) {
minimum = Math.min(minimum, value);
}
}
}
if (minimum == Double.POSITIVE_INFINITY) {
result = null;
}
else {
result = new Double(minimum);
}
}
return result;
}
Example 18
| Source File: DatasetUtilities.java From ccu-historian with GNU General Public License v3.0 | 4 votes |
|
/**
* Finds the minimum domain (or X) value for the specified dataset. This
* is easy if the dataset implements the {@link DomainInfo} interface (a
* good idea if there is an efficient way to determine the minimum value).
* Otherwise, it involves iterating over the entire data-set.
* <p>
* Returns <code>null</code> if all the data values in the dataset are
* <code>null</code>.
*
* @param dataset the dataset (<code>null</code> not permitted).
*
* @return The minimum value (possibly <code>null</code>).
*/
public static Number findMinimumDomainValue(XYDataset dataset) {
ParamChecks.nullNotPermitted(dataset, "dataset");
Number result;
// if the dataset implements DomainInfo, life is easy
if (dataset instanceof DomainInfo) {
DomainInfo info = (DomainInfo) dataset;
return new Double(info.getDomainLowerBound(true));
}
else {
double minimum = Double.POSITIVE_INFINITY;
int seriesCount = dataset.getSeriesCount();
for (int series = 0; series < seriesCount; series++) {
int itemCount = dataset.getItemCount(series);
for (int item = 0; item < itemCount; item++) {
double value;
if (dataset instanceof IntervalXYDataset) {
IntervalXYDataset intervalXYData
= (IntervalXYDataset) dataset;
value = intervalXYData.getStartXValue(series, item);
}
else {
value = dataset.getXValue(series, item);
}
if (!Double.isNaN(value)) {
minimum = Math.min(minimum, value);
}
}
}
if (minimum == Double.POSITIVE_INFINITY) {
result = null;
}
else {
result = new Double(minimum);
}
}
return result;
}
Example 19
| Source File: DatasetUtilities.java From buffer_bci with GNU General Public License v3.0 | 4 votes |
|
/**
* Finds the minimum domain (or X) value for the specified dataset. This
* is easy if the dataset implements the {@link DomainInfo} interface (a
* good idea if there is an efficient way to determine the minimum value).
* Otherwise, it involves iterating over the entire data-set.
* <p>
* Returns <code>null</code> if all the data values in the dataset are
* <code>null</code>.
*
* @param dataset the dataset (<code>null</code> not permitted).
*
* @return The minimum value (possibly <code>null</code>).
*/
public static Number findMinimumDomainValue(XYDataset dataset) {
ParamChecks.nullNotPermitted(dataset, "dataset");
Number result;
// if the dataset implements DomainInfo, life is easy
if (dataset instanceof DomainInfo) {
DomainInfo info = (DomainInfo) dataset;
return new Double(info.getDomainLowerBound(true));
}
else {
double minimum = Double.POSITIVE_INFINITY;
int seriesCount = dataset.getSeriesCount();
for (int series = 0; series < seriesCount; series++) {
int itemCount = dataset.getItemCount(series);
for (int item = 0; item < itemCount; item++) {
double value;
if (dataset instanceof IntervalXYDataset) {
IntervalXYDataset intervalXYData
= (IntervalXYDataset) dataset;
value = intervalXYData.getStartXValue(series, item);
}
else {
value = dataset.getXValue(series, item);
}
if (!Double.isNaN(value)) {
minimum = Math.min(minimum, value);
}
}
}
if (minimum == Double.POSITIVE_INFINITY) {
result = null;
}
else {
result = new Double(minimum);
}
}
return result;
}
Example 20
| Source File: DatasetUtilities.java From openstock with GNU General Public License v3.0 | 4 votes |
|
/**
* Finds the minimum domain (or X) value for the specified dataset. This
* is easy if the dataset implements the {@link DomainInfo} interface (a
* good idea if there is an efficient way to determine the minimum value).
* Otherwise, it involves iterating over the entire data-set.
* <p>
* Returns <code>null</code> if all the data values in the dataset are
* <code>null</code>.
*
* @param dataset the dataset (<code>null</code> not permitted).
*
* @return The minimum value (possibly <code>null</code>).
*/
public static Number findMinimumDomainValue(XYDataset dataset) {
ParamChecks.nullNotPermitted(dataset, "dataset");
Number result;
// if the dataset implements DomainInfo, life is easy
if (dataset instanceof DomainInfo) {
DomainInfo info = (DomainInfo) dataset;
return new Double(info.getDomainLowerBound(true));
}
else {
double minimum = Double.POSITIVE_INFINITY;
int seriesCount = dataset.getSeriesCount();
for (int series = 0; series < seriesCount; series++) {
int itemCount = dataset.getItemCount(series);
for (int item = 0; item < itemCount; item++) {
double value;
if (dataset instanceof IntervalXYDataset) {
IntervalXYDataset intervalXYData
= (IntervalXYDataset) dataset;
value = intervalXYData.getStartXValue(series, item);
}
else {
value = dataset.getXValue(series, item);
}
if (!Double.isNaN(value)) {
minimum = Math.min(minimum, value);
}
}
}
if (minimum == Double.POSITIVE_INFINITY) {
result = null;
}
else {
result = new Double(minimum);
}
}
return result;
}
