[General Information]

Function Name=Belehradek		; name show up in the select function dialog
Brief Description=Belehradek Model
Function Type=Built-in		; source type, built-in, user-defined, external dll
Function Form=Expression	; function form;
Function Source=fgroup.Belehradek
Number Of Parameters=3
Number Of Independent Variables=1
Number Of Dependent Variables=1


[Fitting Parameters]

Naming Method=user-defined
Names=a,b,c
Lower bounds=--,--,--
Upper bounds=--,--,--
Meanings=coefficient,position,power

[Independent Variables]

x =


[Dependent Variables]

y =


[Constants]


[Formula]

y = a*(x-b)^c

[Constraints]


[Parameters Initialization]
sort( x_y_curve );
//smooth( x_y_curve, 2 ); 
b = xatymin( x_y_curve );
x_y_curve = ln( x_y_curve );
Dataset xx;
x_y_curve.AttachX(xx);
xx -= b;
xx = ln( xx );
double coeff[2];
fitpoly( x_y_curve, 1, coeff );
a = exp( coeff[0] );
c = coeff[1];


[Initializations]


[After fitting]


[Controls]
General Linear Constraints=Off
Initialization scripts=Off
Scripts After fitting=Off
