100 90 80 a ° gn o PERCENT EXPLAINEDBYFIT 70 40 30 - UNTRANSFORMED ANTILOG LOG 20+ ITERATION eo. Oo 3——— 0 | 1 l 2 l L 3 4 STRATA l & l 6 L 1 1 2 l l 3 4 STRATA lL 6 L 6 l 1 1 2 l 1 3 4 STRATA j 6 l 6 is apesults obtained when Observation Number 28 in Stratum 6 (see Appendix A) deleted. Figure 12. _ 239-240 : ' Pu Concen Percent of Total Variation Explained By Fitted tration Surface. 339