TDist2t (Keikai Spreadsheet Build 6.0.0 API)

java.lang.Object
- org.apache.poi.ss.formula.functions.Fixed2ArgFunction
- - org.apache.poi.ss.formula.functions.TDist2t

All Implemented Interfaces:

FreeRefFunction, Function, Function2Arg
```
public final class TDist2t
extends Fixed2ArgFunction
implements FreeRefFunction
```
Implementation for Excel T.DIST.2T() function.
Syntax:
T.DIST.2T (X,Deg_freedom)

Returns the two-tailed Student's t-distribution. The Student's t-distribution is used in the hypothesis testing of small sample data sets. Use this function in place of a table of critical values for the t-distribution.
- X Required. The numeric value at which to evaluate the distribution.
- Deg_freedom Required. An integer indicating the number of degrees of freedom.
- If any argument is non-numeric, T.DIST.2T returns the #VALUE! error value.
- If Deg_freedom < 1, T.DIST.2T returns the #NUM! error value.
- If x < 0, then T.DIST.2T returns the #NUM! error value.
- The Deg_freedom argument is truncated to an integer.
https://support.microsoft.com/en-us/office/t-dist-2t-function-198e9340-e360-4230-bd21-f52f22ff5c28

Field Summary

Fields
Modifier and Type Field Description

static TDist2t instance

Constructor Summary

Constructors
Constructor Description

TDist2t()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`ValueEval`	`evaluate(int srcRowIndex, int srcColumnIndex, ValueEval arg1, ValueEval arg2)`	see `Function.evaluate(ValueEval[], int, int)`
`ValueEval`	`evaluate(ValueEval[] args, OperationEvaluationContext ec)`

Methods inherited from class org.apache.poi.ss.formula.functions.Fixed2ArgFunction
evaluate, evaluate, evaluateArray

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

- Field Detail
  - instance
```
public static final TDist2t instance
```
- Constructor Detail
  - TDist2t
```
public TDist2t()
```
- Method Detail
  - evaluate
```
public ValueEval evaluate(int srcRowIndex,
                          int srcColumnIndex,
                          ValueEval arg1,
                          ValueEval arg2)
```
    Description copied from interface: Function2Arg
    
    see Function.evaluate(ValueEval[], int, int)
    
    Specified by:
    
    evaluate in interface Function2Arg
  - evaluate
```
public ValueEval evaluate(ValueEval[] args,
                          OperationEvaluationContext ec)
```
    Specified by:
    
    evaluate in interface FreeRefFunction
    
    Parameters:
    
    args - the pre-evaluated arguments for this function. args is never null, nor are any of its elements.
    
    ec - primarily used to identify the source cell containing the formula being evaluated. may also be used to dynamically create reference evals.
    
    Returns:
    
    never null. Possibly an instance of ErrorEval in the case of a specified Excel error (Exceptions are never thrown to represent Excel errors).