(a) 



(b) 



FIGURE 10. FITTING CURVELINEAR FUNCTIONS: (a) F] IS A REGRESSION 

 FUNCTION ON THE FUNCTION SET (A,B,C,D) AND F2 IS A 

 REGRESSION FUNCTION ON THE FUNCTION SET (D,E,F,G). 

 THE TWO FUNCTIONS DO NOT INTERSECT IN THE RANGE OF 

 OVERLAP; (b) Fi IS A REGRESSION FUNCTION ON THE FUNCTION 

 SET (A,B,C,D,E) AND F2 IS A REGRESSION FUNCTION ON THE 

 FUNCTION SET (C,D,E,F,G). THE TWO FUNCTIONS INTERSECT 

 TWICE IN THE RANGE OF OVERLAP. 



20 



