org.apache.poi.ss.formula.functions

Class TDist2t

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 and Description
static TDist2t	instance

Constructor Summary

Constructors

Constructor and Description
TDist2t()

Method Summary

Modifier and Type	Method and 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

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).