[General Information]

Function Name=ExpGrow1		; name show up in the select function dialog
Brief Description=Exponential Growth 1 with offset
Function Type=Built-in		; source type, built-in, user-defined, external dll
Function Form=Expression	; function form;
Function Source=fgroup.ExpGrow1
Number Of Parameters=4
Number Of Independent Variables=1
Number Of Dependent Variables=1


[Fitting Parameters]

Naming Method=user-defined
Names=y0,x0,A1,t1
Lower bounds=--,--,--,0.0(X,ON)
Upper bounds=--,--,--,--
Meanings=offset,center,amplitude,width


[Independent Variables]

x = 


[Dependent Variables]

y = 


[Constants]


[Formula]
y = y0 + A1*exp((x-x0)/t1)

[Constraints]

[Parameters Initialization]
sort( x_y_curve );
smooth( x_y_curve );
y0 = min( y_data ); 
x_y_curve = ln( x_y_curve - y0 );
double coeff[2];
fitpoly( x_y_curve, 1, coeff);  
A1 = exp(coeff[0]);
t1 = 1/coeff[1];
x0 = 1E-5;

[Initializations]


[After fitting]


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

