public class Logistic extends Object implements UnivariateDifferentiableFunction, DifferentiableUnivariateFunction
| Modifier and Type | Class and Description | 
|---|---|
| static class  | Logistic.ParametricParametric function where the input array contains the parameters of
 the  logistic function, ordered as follows:
 
  k
  m
  b
  q
  a
  n | 
| Constructor and Description | 
|---|
| Logistic(double k,
        double m,
        double b,
        double q,
        double a,
        double n) | 
| Modifier and Type | Method and Description | 
|---|---|
| UnivariateFunction | derivative()Deprecated. 
 as of 3.1, replaced by  value(DerivativeStructure) | 
| DerivativeStructure | value(DerivativeStructure t)Simple mathematical function. | 
| double | value(double x)Compute the value of the function. | 
public Logistic(double k,
        double m,
        double b,
        double q,
        double a,
        double n)
         throws NotStrictlyPositiveException
k - If b > 0, value of the function for x going towards +∞.
 If b < 0, value of the function for x going towards -∞.m - Abscissa of maximum growth.b - Growth rate.q - Parameter that affects the position of the curve along the
 ordinate axis.a - If b > 0, value of the function for x going towards -∞.
 If b < 0, value of the function for x going towards +∞.n - Parameter that affects near which asymptote the maximum
 growth occurs.NotStrictlyPositiveException - if n <= 0.public double value(double x)
value in interface UnivariateFunctionx - Point at which the function value should be computed.@Deprecated public UnivariateFunction derivative()
value(DerivativeStructure)derivative in interface DifferentiableUnivariateFunctionpublic DerivativeStructure value(DerivativeStructure t)
UnivariateDifferentiableFunction classes compute both the
 value and the first derivative of the function.
value in interface UnivariateDifferentiableFunctiont - function input valueCopyright © 2003–2016 The Apache Software Foundation. All rights reserved.