Hi Sham, I agree with Carlo. I would also add that you should try different k-weights, including multiple k-weights at once. Since the dependence of S02 and ss on k is quite different, that can often reduce the correlation between the two. --Scott Calvin Sarah Lawrence College At 11:58 PM 12/19/2006, Shantanu Behera wrote:

Hi Folks

I have a small doubt. I work on the structural features of Y that are segregated to Alumina grain boundaries (very dilute amounts of Yttrium in polycrystalline alumina).

In some of my fits, I find a correlation ~0.85 between SO2 and ss. If I restrain the ss, from 0.004 to 0.007, the CN changes by ~0.5 (not considering +/-0.3). I would appreciate if someone can explain me how to interpret the results from a structural point of view.