## Libraries.Compute.Statistics.Distributions.VarianceRatioDistribution Documentation

This class, ported from Apache Commons, is an implementation of the T-Distribution. More information can be found here: https://en.wikipedia.org/wiki/Student%27s_t-distribution

## Summary

### Actions Summary Table

ActionsDescription
Compare(Libraries.Language.Object object)This action compares two object hash codes and returns an integer.
CumulativeDistribution(number x)
Equals(Libraries.Language.Object object)This action determines if two objects are equal based on their hash code values.
GetHashCode()This action gets the hash code for an object.
GetLowerBound()
GetMean()
GetSolverAbsoluteAccuracy()
GetUpperBound()
GetVariance()
InverseCumulativeDistribution(number p)This action is an implementation of the Inverse Cumulative Distribution, which is also called the Percent Point Function.
InverseSurvival(number p)This action is an implementation of the inverse survival function, as described by NIST/SEMATECH e-Handbook of Statistical Methods, http://www.
IsSupportConnected()
Setup(number numerator, number denominator)
Survival(number p)This action is an implementation of the survival function, as described by NIST/SEMATECH e-Handbook of Statistical Methods, http://www.

## Actions Documentation

### Compare(Libraries.Language.Object object)

This action compares two object hash codes and returns an integer. The result is larger if this hash code is larger than the object passed as a parameter, smaller, or equal. In this case, -1 means smaller, 0 means equal, and 1 means larger. This action was changed in Quorum 7 to return an integer, instead of a CompareResult object, because the previous implementation was causing efficiency issues.

Example Code

``````Object o
Object t
integer result = o:Compare(t) //1 (larger), 0 (equal), or -1 (smaller)``````

#### Return

integer: The Compare result, Smaller, Equal, or Larger.

number

### Equals(Libraries.Language.Object object)

This action determines if two objects are equal based on their hash code values.

Example Code

``````use Libraries.Language.Object
use Libraries.Language.Types.Text
Object o
Text t
boolean result = o:Equals(t)``````

#### Return

boolean: True if the hash codes are equal and false if they are not equal.

### GetHashCode()

This action gets the hash code for an object.

Example Code

``````Object o
integer hash = o:GetHashCode()``````

#### Return

integer: The integer hash code of the object.

number

number

number

number

number

### InverseCumulativeDistribution(number p)

This action is an implementation of the Inverse Cumulative Distribution, which is also called the Percent Point Function. NIST describes this as NIST/SEMATECH e-Handbook of Statistical Methods, http://www.itl.nist.gov/div898/handbook/, date. https://www.itl.nist.gov/div898/handbook/eda/section3/eda362.htm

#### Return

number: the result of the action

### InverseSurvival(number p)

This action is an implementation of the inverse survival function, as described by NIST/SEMATECH e-Handbook of Statistical Methods, http://www.itl.nist.gov/div898/handbook/, date. This action is equivalent to InverseCumulativeDistribution(1 - p) https://www.itl.nist.gov/div898/handbook/eda/section3/eda362.htm

#### Return

number: the result of the survival function

boolean

### Survival(number p)

This action is an implementation of the survival function, as described by NIST/SEMATECH e-Handbook of Statistical Methods, http://www.itl.nist.gov/div898/handbook/, date. This action is equivalent to CumulativeDistribution(1 - p) https://www.itl.nist.gov/div898/handbook/eda/section3/eda362.htm

#### Return

number: the result of the survival function