line offset:	2754.7874	2972.4467	-1596.3040	-976.1953
line slope:	1023.6644	1334.0771	1621.8086	1351.7651
slope ratio:	   0.7673	   1.1998
subtract ped line offset:	-9733.6164	-8206.1674	-28886.8699	-23452.9227
subtract ped line slope:	1025.4994	1336.1692	1651.1511	1375.8827
slope ratio:	   0.7675	   1.1998
offset:	-9680.3641	-8110.9710	-27926.9777	-22681.8022
x a,b,c:	   0.2067	  -1.1499	   0.0429
y a,b,c:	   0.1329	   1.1924	   0.0644
fval:	   0.2179	   0.1355
x err:	   0.2592	   0.1721	   0.1939
y err:	   0.2638	   0.2069	   0.1636