WorksheetFunction.LogNorm_Dist Method

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.

Namespace:  Microsoft.Office.Interop.Excel
Assembly:  Microsoft.Office.Interop.Excel (in Microsoft.Office.Interop.Excel.dll)

Syntax

'Declaration
Function LogNorm_Dist ( _
    Arg1 As Double, _
    Arg2 As Double, _
    Arg3 As Double, _
    Arg4 As Boolean _
) As Double
'Usage
Dim instance As WorksheetFunction
Dim Arg1 As Double
Dim Arg2 As Double
Dim Arg3 As Double
Dim Arg4 As Boolean
Dim returnValue As Double

returnValue = instance.LogNorm_Dist(Arg1, _
    Arg2, Arg3, Arg4)

double LogNorm_Dist(
    double Arg1,
    double Arg2,
    double Arg3,
    bool Arg4
)

Parameters

• Arg1
  Type: System.Double

  X - The value at which to evaluate the function.

• Arg2
  Type: System.Double

  Mean - The mean of ln(x).

• Arg3
  Type: System.Double

  Standard_dev - The standard deviation of ln(x).

• Arg4
  Type: System.Boolean

  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

Type: System.Double

Remarks

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:

Figure 1: Equation for the lognormal cumulative distribution

See Also

Reference

WorksheetFunction Interface

WorksheetFunction Members

Microsoft.Office.Interop.Excel Namespace