NumericItemResponseSummary

java.lang.Object
- com.itemanalysis.psychometrics.measurement.AbstractItemResponseSummary
- - com.itemanalysis.psychometrics.measurement.NumericItemResponseSummary

```
public class NumericItemResponseSummary
extends AbstractItemResponseSummary
```
Summarizes item responses that are numeric. Provides frequencies, proportions, mean, variance, and standard deviation for the entire item and for each individual response option.

Field Summary
- Fields inherited from class com.itemanalysis.psychometrics.measurement.AbstractItemResponseSummary
  doubleResponseMap, doubleScoreMap, stringResponseMap, stringScoreMap, totalFrequency, variableName

Constructor Summary

Constructors
Constructor and Description

NumericItemResponseSummary(VariableName name)

Constructors
Constructor and Description
`NumericItemResponseSummary(VariableName name)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`java.util.Iterator<java.lang.Double>`	`doubleIterator()`
`double`	`getFrequencyAt(double response)` Frequency of a particular item response, where the response is given as a double.
`double`	`getFrequencyAt(int response)` Frequency of a particular item response, where the response is given as an int.
`double`	`getFrequencyAt(java.lang.String response)` Frequency of a particular item response, where the response is given as a String.
`double`	`getMean()` The item sample mean.
`java.lang.String`	`getOutputString()` Formatted output for the item mean and standard deviation.
`java.lang.String`	`getOutputStringAt(double response)` Formatted output for a particlar response.
`java.lang.String`	`getOutputStringAt(int response)`
`java.lang.String`	`getOutputStringAt(java.lang.String response)`
`double`	`getPopulationStandardDeviation()` The item population standard deviation (i.e.
`double`	`getPopulationStandardDeviationAt(double response)` Population standard deviation of a particular item response, where the response is given as a double.
`double`	`getPopulationStandardDeviationAt(int response)` Population standard deviation of a particular item response, where the response is given as an int.
`double`	`getPopulationStandardDeviationAt(java.lang.String response)` Population standard deviation of a particular item response, where the response is given as a String.
`double`	`getPopulationVariance()` The item population variance (i.e.
`double`	`getProportionAt(double response)` Relative frequency of a particular item response, where the response is given as a double.
`double`	`getProportionAt(int response)` Relative frequency of a particular item response, where the response is given as an int.
`double`	`getProportionAt(java.lang.String response)` Relative frequency of a particular item response, where the response is given as a String.
`double`	`getScoreAt(double response)` Returns the score that is assigned to an item response.
`double`	`getScoreAt(int response)` Returns the score that is assigned to an item response.
`double`	`getScoreAt(java.lang.String response)` Returns the score that is assigned to an item response.
`double`	`getStandardDeviation()` The item sample standard deviation (i.e.
`double`	`getStandardDeviationAt(double response)` Sample standard deviation of a particular item response, where the response is given as a double.
`double`	`getStandardDeviationAt(int response)` Sample standard deviation of a particular item response, where the response is given as an int.
`double`	`getStandardDeviationAt(java.lang.String response)` Sample standard deviation of a particular item response, where the response is given as a String.
`java.lang.String`	`getTotalFrequencyOutputString()`
`double`	`getVariance()` The item sample variance (i.e.
`void`	`increment(double response)` Increment frequency count of a response by one.
`void`	`increment(double response, double freqWeight)` Increment frequency count of a response by an amount equal to freqWeight.
`void`	`increment(int response)` Increment frequency count of a response by one.
`void`	`increment(int response, double freqWeight)` Increment frequency count of a response by an amount equal to freqWeight.
`void`	`increment(java.lang.String response)` Increment frequency count of a response by one.
`void`	`increment(java.lang.String response, double freqWeight)` Increment frequency count of a response by an amount equal to freqWeight.
`void`	`setScoreAt(double response, double score)` Sets the value of a response to that given by score.
`void`	`setScoreAt(int response, double score)` Sets the value of a response to that given by score.
`void`	`setScoreAt(java.lang.String response, double score)` Sets the value of a response to that given by score.
`java.util.Iterator<java.lang.String>`	`stringIterator()`
`java.lang.String`	`toString()`

Methods inherited from class com.itemanalysis.psychometrics.measurement.AbstractItemResponseSummary
getName, getTotalFrequency

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

- Constructor Detail
  - NumericItemResponseSummary
```
public NumericItemResponseSummary(VariableName name)
```
- Method Detail
  - increment
```
public void increment(java.lang.String response)
```
    Increment frequency count of a response by one.
    
    Parameters:
    
    response - an item response that can be parsed as a double.
  - increment
```
public void increment(java.lang.String response,
                      double freqWeight)
               throws java.lang.NumberFormatException
```
    Increment frequency count of a response by an amount equal to freqWeight. It take a String as input but it will be parsed as a double value.
    
    Parameters:
    
    response - an item response that can be parsed as a double
    
    freqWeight - frequency weight of the response
    
    Throws:
    
    java.lang.NumberFormatException - throws if string cannot be parsed into a double
  - increment
```
public void increment(int response)
```
    Increment frequency count of a response by one.
    
    Parameters:
    
    response - an item resposne
  - increment
```
public void increment(int response,
                      double freqWeight)
```
    Increment frequency count of a response by an amount equal to freqWeight.
    
    Parameters:
    
    response - an item response that will be converted to a double
    
    freqWeight - frequency weight of the response
  - increment
```
public void increment(double response)
```
    Increment frequency count of a response by one.
    
    Parameters:
    
    response - an item response
  - increment
```
public void increment(double response,
                      double freqWeight)
```
    Increment frequency count of a response by an amount equal to freqWeight.
    
    Parameters:
    
    response - an item response
    
    freqWeight - the frequency weight for the response
  - setScoreAt
```
public void setScoreAt(java.lang.String response,
                       double score)
                throws java.lang.NumberFormatException
```
    Sets the value of a response to that given by score. This score value will be used in computation of summary statistics such as the mean and variance. If this method is not used, then the score will be the same as the item response. This method takes a String as the response.
    
    Parameters:
    
    response - an item response
    
    score - a numeric value for the score
    
    Throws:
    
    java.lang.NumberFormatException - thrown if the item response cannot be parsed as a double.
  - setScoreAt
```
public void setScoreAt(int response,
                       double score)
```
    Sets the value of a response to that given by score. This score value will be used in computation of summary statistics such as the mean and variance. If this method is not used, then the score will be the same as the item response. This version uses an int as the response.
    
    Parameters:
    
    response - an item response
    
    score - a numeric value for the response
  - setScoreAt
```
public void setScoreAt(double response,
                       double score)
```
    Sets the value of a response to that given by score. This score value will be used in computation of summary statistics such as the mean and variance. If this method is not used, then the score will be the same as the item response. This method uses a double as the response.
    
    Parameters:
    
    response - an item response
    
    score - a numeric value for the response
  - getScoreAt
```
public double getScoreAt(java.lang.String response)
                  throws java.lang.NumberFormatException
```
    Returns the score that is assigned to an item response. This method takes a String as the item response.
    
    Parameters:
    
    response - an item response
    
    Returns:
    
    the score for the item response
    
    Throws:
    
    java.lang.NumberFormatException - thrown if the item response cannot be parsed as a double
  - getScoreAt
```
public double getScoreAt(int response)
```
    Returns the score that is assigned to an item response. This method takes an int as the item response.
    
    Parameters:
    
    response - an item response
    
    Returns:
    
    the score for an item response
  - getScoreAt
```
public double getScoreAt(double response)
```
    Returns the score that is assigned to an item response. This method takes a double as the item response.
    
    Parameters:
    
    response - an item response
    
    Returns:
    
    the score for the item response
  - getMean
```
public double getMean()
```
    The item sample mean.
    
    Returns:
    
    sample mean
  - getVariance
```
public double getVariance()
```
    The item sample variance (i.e. n-1 in the denominator)
    
    Returns:
    
    sample variance
  - getStandardDeviation
```
public double getStandardDeviation()
```
    The item sample standard deviation (i.e. n-1 in the denominator)
    
    Returns:
    
    sample standard deviation
  - getPopulationVariance
```
public double getPopulationVariance()
```
    The item population variance (i.e. n in the denominator).
    
    Returns:
    
    population variance
  - getPopulationStandardDeviation
```
public double getPopulationStandardDeviation()
```
    The item population standard deviation (i.e. n in the denominator).
    
    Returns:
    
    population standard deviation
  - getFrequencyAt
```
public double getFrequencyAt(java.lang.String response)
                      throws java.lang.NumberFormatException
```
    Frequency of a particular item response, where the response is given as a String.
    
    Parameters:
    
    response - an item response
    
    Returns:
    
    frequency of the response
    
    Throws:
    
    java.lang.NumberFormatException - thrown if response cannot be parsed as a double.
  - getFrequencyAt
```
public double getFrequencyAt(int response)
```
    Frequency of a particular item response, where the response is given as an int.
    
    Parameters:
    
    response - and item response
    
    Returns:
    
    frequency of the item response
  - getFrequencyAt
```
public double getFrequencyAt(double response)
```
    Frequency of a particular item response, where the response is given as a double.
    
    Parameters:
    
    response - an item response
    
    Returns:
    
    frequency of the response
  - getProportionAt
```
public double getProportionAt(java.lang.String response)
                       throws java.lang.NumberFormatException
```
    Relative frequency of a particular item response, where the response is given as a String.
    
    Parameters:
    
    response - an item response
    
    Returns:
    
    relative frequency of an item response
    
    Throws:
    
    java.lang.NumberFormatException - thrown if response cannot be parsed as a double
  - getProportionAt
```
public double getProportionAt(int response)
```
    Relative frequency of a particular item response, where the response is given as an int.
    
    Parameters:
    
    response - and item response
    
    Returns:
    
    relative frequency of the item response
  - getProportionAt
```
public double getProportionAt(double response)
```
    Relative frequency of a particular item response, where the response is given as a double.
    
    Parameters:
    
    response - an item response
    
    Returns:
    
    relative frequency of the item response
  - getStandardDeviationAt
```
public double getStandardDeviationAt(java.lang.String response)
                              throws java.lang.NumberFormatException
```
    Sample standard deviation of a particular item response, where the response is given as a String.
    
    Parameters:
    
    response - an item response
    
    Returns:
    
    sample standard deviaiton of the response
    
    Throws:
    
    java.lang.NumberFormatException - thrown if the response cannot be parsed as a double
  - getStandardDeviationAt
```
public double getStandardDeviationAt(int response)
```
    Sample standard deviation of a particular item response, where the response is given as an int.
    
    Parameters:
    
    response - an item response
    
    Returns:
    
    sample standard deviation of the response
  - getStandardDeviationAt
```
public double getStandardDeviationAt(double response)
```
    Sample standard deviation of a particular item response, where the response is given as a double.
    
    Parameters:
    
    response - an item response
    
    Returns:
    
    sample standard deviation of the response
  - getPopulationStandardDeviationAt
```
public double getPopulationStandardDeviationAt(java.lang.String response)
```
    Population standard deviation of a particular item response, where the response is given as a String.
    
    Parameters:
    
    response - an item response
    
    Returns:
    
    sample standard deviaiton of the response
    
    Throws:
    
    java.lang.NumberFormatException - thrown if the response cannot be parsed as a double
  - getPopulationStandardDeviationAt
```
public double getPopulationStandardDeviationAt(int response)
```
    Population standard deviation of a particular item response, where the response is given as an int.
    
    Parameters:
    
    response - an item response
    
    Returns:
    
    sample standard deviation of the response
  - getPopulationStandardDeviationAt
```
public double getPopulationStandardDeviationAt(double response)
```
    Population standard deviation of a particular item response, where the response is given as a double.
    
    Parameters:
    
    response - an item response
    
    Returns:
    
    sample standard deviation of the response
  - doubleIterator
```
public java.util.Iterator<java.lang.Double> doubleIterator()
```
  - stringIterator
```
public java.util.Iterator<java.lang.String> stringIterator()
```
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object
  - getOutputString
```
public java.lang.String getOutputString()
```
    Formatted output for the item mean and standard deviation. Defaults to two decimal places.
    
    Returns:
    
    formatted output
  - getOutputStringAt
```
public java.lang.String getOutputStringAt(java.lang.String response)
```
  - getOutputStringAt
```
public java.lang.String getOutputStringAt(int response)
```
  - getOutputStringAt
```
public java.lang.String getOutputStringAt(double response)
```
    Formatted output for a particlar response. It provides the proportion and sample standard deviation. Defaults to two decimal places.
    
    Parameters:
    
    response - an item response
    
    Returns:
    
    formatted output
  - getTotalFrequencyOutputString
```
public java.lang.String getTotalFrequencyOutputString()
```

Class NumericItemResponseSummary

Field Summary

Fields inherited from class com.itemanalysis.psychometrics.measurement.AbstractItemResponseSummary

Constructor Summary

Method Summary

Methods inherited from class com.itemanalysis.psychometrics.measurement.AbstractItemResponseSummary

Methods inherited from class java.lang.Object

Constructor Detail

NumericItemResponseSummary

Method Detail

increment

increment

increment

increment

increment

increment

setScoreAt

setScoreAt

setScoreAt

getScoreAt

getScoreAt

getScoreAt

getMean

getVariance

getStandardDeviation

getPopulationVariance

getPopulationStandardDeviation

getFrequencyAt

getFrequencyAt

getFrequencyAt

getProportionAt

getProportionAt

getProportionAt

getStandardDeviationAt

getStandardDeviationAt

getStandardDeviationAt

getPopulationStandardDeviationAt

getPopulationStandardDeviationAt

getPopulationStandardDeviationAt

doubleIterator

stringIterator

toString

getOutputString

getOutputStringAt

getOutputStringAt

getOutputStringAt

getTotalFrequencyOutputString