uchicago.src.sim.analysis
Class StatisticUtilities

java.lang.Object
  uchicago.src.sim.analysis.StatisticUtilities

public class StatisticUtilities
extends java.lang.Object

Statistical utilities. Once the COLT library is finalized this will be a wrapper around its statistics package. These methods are used by the other Statistics classes. A user should not need to call this methods under normal circumstances.

Version:

$Revision: 1.7 $ $Date: 2004/11/03 19:51:00 $

Author:

Nick Collier

Field Summary

static double

STAT_UTIL_ERRORVAL

Constructor Summary

StatisticUtilities()

Method Summary

static double	getAverage(java.util.ArrayList list, java.lang.reflect.Method m) Gets an average of the values returned by every member of the specified list when method m is called on them.
static double	getDouble(java.lang.Object o, java.lang.reflect.Method m) Gets the double returned when the specified method is called on the specified object.
static double	getMax(java.util.ArrayList list, java.lang.reflect.Method m) Gets the max of the values returned by every member of the specified list when method m is called on them.
static double	getMin(java.util.ArrayList list, java.lang.reflect.Method m) Gets the min of the values returned by every member of the specified list when method m is called on them.

Methods inherited from class java.lang.Object

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

Field Detail

STAT_UTIL_ERRORVAL

public static double STAT_UTIL_ERRORVAL

Constructor Detail

StatisticUtilities

public StatisticUtilities()

Method Detail

getAverage

public static double getAverage(java.util.ArrayList list,
                                java.lang.reflect.Method m)

Gets an average of the values returned by every member of the specified list when method m is called on them.

Parameters:

list - the list of objects on which to call the method

m - the method to call on the object

Returns:

the average, 0.0 if the list is empty or STAT_UTIL_ERRORVAL on error

getMax

public static double getMax(java.util.ArrayList list,
                            java.lang.reflect.Method m)

Gets the max of the values returned by every member of the specified list when method m is called on them.

Parameters:

list - the list of objects on which to call the method

m - the method to call on the object

Returns:

the max, Double.MIN_VALUE if the list is empty or STAT_UTIL_ERRORVAL on error

getMin

public static double getMin(java.util.ArrayList list,
                            java.lang.reflect.Method m)

Gets the min of the values returned by every member of the specified list when method m is called on them.

Parameters:

list - the list of objects on which to call the method

m - the method to call on the object

Returns:

the max, Double.MAX_VALUE if the list is empty or STAT_UTIL_ERRORVAL on error

getDouble

public static double getDouble(java.lang.Object o,
                               java.lang.reflect.Method m)

Gets the double returned when the specified method is called on the specified object.

Parameters:

o - the object on which to call the method

m - the method to call on the object

Returns:

the value returned or STAT_UTIL_ERRORVAL on error