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Probabilities.ErlangCDFInv Function
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Erlang distribution point percent function (PPF).

Pascal
function ErlangCDFInv(p: double; k: Integer; Lambda: double): double; overload;
File
Parameters
Parameters 
Description 
p 
Probability, real positive value on closed interval [0,1]. 
k 
Defines distribution shape parameter. k must be a positive integer. 
Lambda 
Defines distribution rate parameter. Lambda must be a positive value. 
Returns

the Erlang distribution point percent function (PPF). Both parameters k and Lambda must be positive, otherwise the result is NAN.

Description

The inverse of the Erlang cumulative distribution function is defined by the following equation: 

 

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