Hi,
I was looking for some samples on how to use ulogifit for 4 parameters logistic curve fit,
Could someone share some tips or guide please? Below are my code snippet, not sure if the TVector B parameter result output is correct or not ?
var
X:array [0..9] of Float=(0,1,2,3,4,5,6,7,8,9,10);
Y:array [0..9] of Float=(10,11,25,36,82,90,106,201,301,403);
TX,TY:TVector;
vecB: array of Float;
B: TVector;
MatV: TMatrix;
beta,alpha:Float;
A1,B1,N:Float;
begin
TX:=X;
TY:=Y;
DimVector(TX,10);
DimVector(TY,10);
SetLength(vecB,5);
B := vecB;
DimMatrix(MatV, 0, 4);
LogiFit(TX, TY, 1, 9,true,true, 1000, 0.001, B, MatV);
A1:=B[0];
B1:=B[1];
alpha:=B[2];
beta:=B[3];
N:=B[4];