// Home / Documentation / Function Reference / NTWEIBULLINV

NTWEIBULLINV

Returns the inverse of the cumulative distribution function for a specified Weibull distribution.

Syntax

NTWEIBULLINV(

  • prob,
  • Alpha,
  • Beta

)

 

Parameters

  • prob is a probability corresponding to the normal distribution.
  • Alpha is a parameter of the distribution \alpha\;(>0).
  • Beta is a parameter of the distribution \beta\;(>0).

Remarks

The return value x for probability P is

x=\alpha\left(-\log P\right)^{1/\beta}

Example

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

    click to openclick to closeHow 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

      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
       
    A B
    Data Description
    0.5 Probability associated with the Weibull distribution
    1.7 Value of parameter Alpha
    0.9 Value of parameter Beta
    Formula Description (Result)
    =NTWEIBULLINV(A2,A3,A4) Inverse of the cumulative distribution function for the terms above
  • Download sample excel sheet

See also

 
Share

Comments are closed.