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

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.

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

Note   Do not select the row or column headers.

Selecting an example from Help
• Press CTRL+C.
• In the worksheet, select cell A1, and press CTRL+V.
• 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.
A B
Data Description
0.039084 Probability associated with the lognormal distribution
3.5 Mean of ln(x)
1.2 Standard deviation of ln(x)
Formula Description (Result)
=LOGINV(A2, A3, A4) Inverse of the lognormal cumulative distribution function for the terms above (4.000014)

Applies to:
Excel 2007