Dear Panel of Feffit Experts, I have two questions for you, with several parts. I am looking at Lithium Cobalt Oxide annealed at 200 C. (1) In Athena what exactly do the varying levels of spine clamps mean? When do I need to use them? I've been ignoring them up to now, but I think that it might help my resulting fit, which brings me to my second part. (2) By looking at my results is there any advice you can give me? Do my reduced chi-squared, R-factor and correlated variables look good? I know that the R-Factor should be below 0.05, but what about red chi-squared (depends on the material)? Also, I am concerened that my amp (SO^2) should be closer to 1. I am using the einstien model and e01 refers to the farther 3 of my 4 paths. What else should I consider? Thanks, Dan Carter Hunter College Results: Independent points = 11.225585938 Number of variables = 5.000000000 Chi-square = 66.894398861 Reduced Chi-square = 10.745076774 R-factor = 0.040027549 Measurement uncertainty (k) = 0.002990761 Measurement uncertainty (R) = 0.069932022 Number of data sets = 1.000000000 Guess parameters +/- uncertainties: e0 = -3.9151859 +/- 2.3534572 delr = -0.0189516 +/- 0.0134287 ampg = 0.9492922 +/- 0.0001603 e01 = -9.3741702 +/- 2.5615506 theta = 415.2229263 +/- 89.8481275 Restraints: amp = 0.7077880 Set parameters: ampt = 0.9500000 scale = 1000.0000000 temp = 300.0000000 Correlations between variables: ampg and theta --> -0.9015 delr and e01 --> 0.8551 e0 and delr --> 0.7809 e0 and e01 --> 0.6858 All other correlations are below 0.25