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Probabilities.LogisticCDF Method (double, double, double)
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Logistic cumulative distribution function (CDF).

Syntax
C#
Visual Basic
public static double LogisticCDF(double x, double m, double b);
Parameters
Parameters 
Description 
double x 
Function domain, real value. 
double m 
Distribution location parameter, real value. 
double b 
Distribution scale parameter, real positive value. 
Returns

the logistic cumulative distribution function (CDF) for value x using the parameters m and b. Both parameters must be positive, otherwise the result is NAN.

Remarks

The logistic cumulative distribution function is defined by the following equation: 

 

The result of LogisticCDF is the probability that a single observation from a logistic distribution with parameters m and b will fall in the interval [-infinity,x].

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