com.imsl.chart
Class BoxPlot.Statistics

java.lang.Object
  com.imsl.chart.BoxPlot.Statistics

All Implemented Interfaces:

Serializable

Enclosing class:

BoxPlot

public static class BoxPlot.Statistics
extends Object
implements Serializable

Computes the statistics for one set of observations in a Boxplot.

See Also:

Serialized Form

Constructor Summary

BoxPlot.Statistics(double[] obs)
Creates a new instance of BoxPlot.Statistics.

Method Summary

double[]	getFarMarkers() Returns the array of far markers.
double	getLowerAdjacentValue() Returns the lower adjacent value.
double	getLowerQuartile() Returns the lower quartile value.
double	getMaximumValue() Returns the maximum value of the observations.
double	getMedian() Returns the median value.
double	getMedianLowerConfidenceInterval() Returns the lower confidence interval for the median.
double	getMedianUpperConfidenceInterval() Returns the upper confidence interval for the median.
double	getMinimumValue() Returns the minimum value of the observations.
int	getNumberObservations() Returns the number of observations.
double[]	getOutsideMarkers() Returns the array of outside markers.
double	getUpperAdjacentValue() Returns the lower adjacent value.
double	getUpperQuartile() Returns the upper quartile value.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BoxPlot.Statistics

public BoxPlot.Statistics(double[] obs)

Creates a new instance of BoxPlot.Statistics.

Parameters:

obs - a double array containing the set of observations. There must be at least 4 observations to compute the statistics.

Throws:

IllegalArgumentException - is thrown if there are fewer than 4 observations.

Method Detail

getFarMarkers

public double[] getFarMarkers()

Returns the array of far markers.

Returns:

a double array containing the far markers for this set

getLowerAdjacentValue

public double getLowerAdjacentValue()

Returns the lower adjacent value.

Returns:

a double which specifies the lower adjacent value

getLowerQuartile

public double getLowerQuartile()

Returns the lower quartile value.

Returns:

a double which specifies the lower quartile value (25th percentile)

getMaximumValue

public double getMaximumValue()

Returns the maximum value of the observations.

Returns:

a double which specifies the the maximum value of this set

getMedian

public double getMedian()

Returns the median value.

Returns:

a double which specifies the median value for the set of observations

getMedianLowerConfidenceInterval

public double getMedianLowerConfidenceInterval()

Returns the lower confidence interval for the median.

Returns:

a double which specifies the lower confidence interval for the median value of this set of observations

getMedianUpperConfidenceInterval

public double getMedianUpperConfidenceInterval()

Returns the upper confidence interval for the median.

Returns:

a double which specifies the upper confidence interval for the median value of this set of observations

getMinimumValue

public double getMinimumValue()

Returns the minimum value of the observations.

Returns:

a double which specifies the the minimum value of this set

getNumberObservations

public int getNumberObservations()

Returns the number of observations.

Returns:

an int which specifies the number of observations in this set

getOutsideMarkers

public double[] getOutsideMarkers()

Returns the array of outside markers.

Returns:

a double array containing the outside markers for this set

getUpperAdjacentValue

public double getUpperAdjacentValue()

Returns the lower adjacent value.

Returns:

a double which specifies the upper adjacent value

getUpperQuartile

public double getUpperQuartile()

Returns the upper quartile value.

Returns:

a double which specifies the upper quartile value (75th percentile)