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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 α(>0)\alpha(>0).
  • Beta is a parameter of the distribution β(>0)\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

    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.

AB
1DataDescription
20.5Value for which you want the distribution
31.7Value of parameter Alpha
40.9Value of parameter Beta
5FormulaDescription (Result)
6=NTWEIBULLDIST(A2,A3,A4,TRUE)Cumulative distribution function for the terms above
7=NTWEIBULLDIST(A2,A3,A4,FALSE)Probability density function for the terms above

See also​