java.lang.Object
- org.opentrafficsim.water.statistics.XTally

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

XPersistent, XTimeTally
```
public class XTally
extends Object
implements Serializable
```
Copyright (c) 2011-2013 TU Delft, Faculty of TBM, Systems and Simulation
This software is licensed without restrictions to Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek TNO (TNO), Erasmus University Rotterdam, Delft University of Technology, Panteia B.V., Stichting Projecten Binnenvaart, Ab Ovo Nederland B.V., Modality Software Solutions B.V., and Rijkswaterstaat - Dienst Water, Verkeer en Leefomgeving, including the right to sub-license sources and derived products to third parties.

Version:

Mar 24, 2013

Author:

Alexander Verbraeck

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type	Field	Description
`static short`	`BOTH_SIDE_CONFIDENCE`	BOTH_SIDE_CONFIDENCE refers to both sides of the confidence.
`protected String`	`description`	description refers to the description of this tally.
`static short`	`LEFT_SIDE_CONFIDENCE`	LEFT_SIDE_CONFIDENCE refers to the left side confidence.
`protected double`	`max`	maxrefers to the max of the tally.
`protected double`	`min`	min refers to the min of the tally.
`protected long`	`n`	n refers to the number of measurements.
`static short`	`RIGTH_SIDE_CONFIDENCE`	RIGTH_SIDE_CONFIDENCE refers to the right side confidence.
`protected Object`	`semaphore`	the semaphore.
`protected double`	`sum`	sum refers to the sum of the tally.
`protected double`	`varianceSum`	varianceSum refers to the varianceSum of the tally.

Constructor Summary

Constructors
Constructor Description

XTally(String description)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`double[]`	`getConfidenceInterval(double alpha)`	returns the confidence interval on either side of the mean.
`double[]`	`getConfidenceInterval(double alpha, org.djutils.stats.ConfidenceInterval side)`	returns the confidence interval based of the mean.
`String`	`getDescription()`	returns the description of this tally.
`double`	`getMax()`	Returns the max.
`double`	`getMin()`	Returns the min.
`long`	`getN()`	Returns the number of observations.
`double`	`getSampleMean()`	Returns the sampleMean of all oberservations since the initialization.
`double`	`getSampleVariance()`	Returns the current tally variance.
`double`	`getStdDev()`	Returns the current tally standard deviation.
`double`	`getSum()`	returns the sum of the values of the observations.
`void`	`initialize()`	initializes the Tally.
`boolean`	`isInitialized()`	is this tally initialized?
`void`	`tally(double value)`	tally.
`String`	`toString()`
`int`	`writeToExcel(Sheet sheet, int startRow)`	Write statistics to an excel spreadsheet, starting on row "startRow".

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - sum
```
protected double sum
```
    sum refers to the sum of the tally.
  - min
```
protected double min
```
    min refers to the min of the tally.
  - max
```
protected double max
```
    maxrefers to the max of the tally.
  - varianceSum
```
protected double varianceSum
```
    varianceSum refers to the varianceSum of the tally.
  - n
```
protected long n
```
    n refers to the number of measurements.
  - description
```
protected String description
```
    description refers to the description of this tally.
  - semaphore
```
protected Object semaphore
```
    the semaphore.
  - LEFT_SIDE_CONFIDENCE
```
public static final short LEFT_SIDE_CONFIDENCE
```
    LEFT_SIDE_CONFIDENCE refers to the left side confidence.
    
    See Also:
    
    Constant Field Values
  - BOTH_SIDE_CONFIDENCE
```
public static final short BOTH_SIDE_CONFIDENCE
```
    BOTH_SIDE_CONFIDENCE refers to both sides of the confidence.
    
    See Also:
    
    Constant Field Values
  - RIGTH_SIDE_CONFIDENCE
```
public static final short RIGTH_SIDE_CONFIDENCE
```
    RIGTH_SIDE_CONFIDENCE refers to the right side confidence.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - XTally
```
public XTally(String description)
```
    Parameters:
    
    description - String; description of the statistic
- Method Detail
  - getSampleMean
```
public double getSampleMean()
```
    Returns the sampleMean of all oberservations since the initialization.
    
    Returns:
    
    double the sampleMean
  - getConfidenceInterval
```
public double[] getConfidenceInterval(double alpha)
```
    returns the confidence interval on either side of the mean.
    
    Parameters:
    
    alpha - double; Alpha is the significance level used to compute the confidence level. The confidence level equals 100*(1 - alpha)%, or in other words, an alpha of 0.05 indicates a 95 percent confidence level.
    
    Returns:
    
    double[] the confidence interval of this tally
  - getConfidenceInterval
```
public double[] getConfidenceInterval(double alpha,
                                      org.djutils.stats.ConfidenceInterval side)
```
    returns the confidence interval based of the mean.
    
    Parameters:
    
    alpha - double; Alpha is the significance level used to compute the confidence level. The confidence level equals 100*(1 - alpha)%, or in other words, an alpha of 0.05 indicates a 95 percent confidence level.
    
    side - short; the side of the confidence interval with respect to the mean
    
    Returns:
    
    double[] the confidence interval of this tally
  - getDescription
```
public String getDescription()
```
    returns the description of this tally.
    
    Returns:
    
    Sting description
  - getMax
```
public double getMax()
```
    Returns the max.
    
    Returns:
    
    double
  - getMin
```
public double getMin()
```
    Returns the min.
    
    Returns:
    
    double
  - getN
```
public long getN()
```
    Returns the number of observations.
    
    Returns:
    
    long n
  - getStdDev
```
public double getStdDev()
```
    Returns the current tally standard deviation.
    
    Returns:
    
    double the standard deviation
  - getSum
```
public double getSum()
```
    returns the sum of the values of the observations.
    
    Returns:
    
    double sum
  - getSampleVariance
```
public double getSampleVariance()
```
    Returns the current tally variance.
    
    Returns:
    
    double samplevariance
  - initialize
```
public void initialize()
```
    initializes the Tally. This methods sets the max, min, n, sum and variance values to their initial values.
  - isInitialized
```
public boolean isInitialized()
```
    is this tally initialized?
    
    Returns:
    
    true whenever this.initialize is invoked.
  - tally
```
public void tally(double value)
```
    tally.
    
    Parameters:
    
    value - double; the value
  - writeToExcel
```
public int writeToExcel(Sheet sheet,
                        int startRow)
```
    Write statistics to an excel spreadsheet, starting on row "startRow".
    
    Parameters:
    
    sheet - Sheet; the excel sheet to write to
    
    startRow - int; the first row of writing
    
    Returns:
    
    first free row after writing
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
    
    See Also:
    
    Object.toString()

Class XTally

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

sum

min

max

varianceSum

n

description

semaphore

LEFT_SIDE_CONFIDENCE

BOTH_SIDE_CONFIDENCE

RIGTH_SIDE_CONFIDENCE

Constructor Detail

XTally

Method Detail

getSampleMean

getConfidenceInterval

getConfidenceInterval

getDescription

getMax

getMin

getN

getStdDev

getSum

getSampleVariance

initialize

isInitialized

tally

writeToExcel

toString