LOGINV

Returns the inverse of the lognormal cumulative distribution function of x, where ln(x) is normally distributed with parameters mean and standard_dev. If p = LOGNORMDIST(x,...) then LOGINV(p,...) = x.

Use the lognormal distribution to analyze logarithmically transformed data.

Syntax

LOGINV(probability,mean,standard_dev)

Probability is a probability associated with the lognormal distribution.

Mean is the mean of ln(x).

Standard_dev is the standard deviation of ln(x).

Remarks

• If any argument is nonnumeric, LOGINV returns the #VALUE! error value.
• If probability < 0 or probability > 1, LOGINV returns the #NUM! error value.
• If standard_dev <= 0, LOGINV returns the #NUM! error value.

• The inverse of the lognormal distribution function is:

  

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 Formulas tab, in the Formula Auditing group, click the Show Formulas button.

See also:

• EXP
• LN
• LOG
• LOG10
• LOGNORMDIST
• Statistical functions