APPENDIX A 



ADJUSTMENT OF THE ANALYST'S CURVE 

 TO THE UPPER RIGHT QUADRANT 



If the curve lies partly or wholly to either side of X = 0, change the X values 

 point coordinates from the curve to X' = (X - X minimum) - -for example: 



(Y) 



(X) 



(yM 



-30 

 t 



MINIMUM 



-10 



■10 10 

 MINIMUM 



10 



MINIMUM 



30 



X 



X' = 

 X- C-30) 



X 



X' = 

 X-(-lO) 



X 



X' = 

 X-(IO) 



-30 







-10 







10 







-20 



10 







10 



20 



10 



-10 



20 



10 



20 



30 



20 



Plotted over X', all three curves would now appear as follows: 



(Y) 



—J^^^^ (X') 



20 



