WorksheetFunction.LogNorm_Dist(Double, Double, Double, Boolean) Method
Definition
Important
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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.
public:
double LogNorm_Dist(double Arg1, double Arg2, double Arg3, bool Arg4);public double LogNorm_Dist (double Arg1, double Arg2, double Arg3, bool Arg4);Public Function LogNorm_Dist (Arg1 As Double, Arg2 As Double, Arg3 As Double, Arg4 As Boolean) As DoubleParameters
- Arg1
- Double
X - The value at which to evaluate the function.
- Arg2
- Double
Mean - The mean of ln(x).
- Arg3
- Double
Standard_dev - The standard deviation of ln(x).
- Arg4
- 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.
Returns
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