// Home / Documentation / Function Reference / NTWEIBULLDIST

# NTWEIBULLDIST

Returns the Weibull distribution for the specified parameters.

## Syntax

NTWEIBULLDIST(

• x,
• Alpha,
• Beta,
• Cumulative

)

#### Parameters

• x is the value for which you want the distribution.
• Alpha is a parameter of the distribution $\alpha\;(>0)$.
• Beta is a parameter of the distribution $\beta\;(>0)$.
• Cumulative is a logical value that determines the form of the function. If cumulative is TRUE, NTBETADIST returns the cumulative distribution function; if FALSE, it returns the probability density function.

## Remarks

• This function is same as Excel function “WEIBULL”.

## Example

• The example may be easier to understand if you copy it to a blank worksheet

How to copy an example

1. Create a blank workbook or worksheet.
2. Select the example in the Help topic.

Note  Do not select the row or column headers.

Selecting an example from Help

3. Press CTRL+C.
4. In the worksheet, select cell A1, and press CTRL+V.
5. To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Tools menu, point to Formula Auditing, and then click Formula Auditing Mode.

1
2
3
4
5
6

7

A B
Data Description
0.5 Value for which you want the distribution
1.7 Value of parameter Alpha
0.9 Value of parameter Beta
Formula Description (Result)
=NTWEIBULLDIST(A2,A3,A4,TRUE) Cumulative distribution function for the terms above
=NTWEIBULLDIST(A2,A3,A4,FALSE) Probability density function for the terms above