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WorksheetFunction.LogNorm_Dist Method (Excel)

Returns the lognormal distribution of x, where ln(x) is normally distributed with parameters mean and standard_dev. Use this function to analyze data that has been logarithmically transformed.

Version Added: Excel 2010

expression .LogNorm_Dist(Arg1, Arg2, Arg3)

expression A variable that represents a WorksheetFunction object.

Parameters

Name

Required/Optional

Data Type

Description

Arg1

Required

Double

X - The value at which to evaluate the function.

Arg2

Required

Double

Mean - The mean of ln(x).

Arg3

Required

Double

Standard_dev - The standard deviation of ln(x).

Arg4

Optional

Variant

Cumulative - A logical value that determines the form of the function. If cumulative is TRUE, LOGNORM_DIST returns the cumulative distribution function; if FALSE, it returns the probability density function.

Return Value

Double

  • If any argument is nonnumeric, LOGNORM_DIST returns the #VALUE! error value.

  • If x ≤ 0 or if standard_dev ≤ 0, LOGNORM_DIST returns the #NUM! error value.

  • The equation for the lognormal cumulative distribution function is:
    LOGNORM_DIST_ZA10390996

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