Hi Nitish, R^2 cannot take values of greater than 1. Per definition (see http://en.wikipedia.org/wiki/Coefficient_of_determination) R^2 := 1- SSE/SST whereby SSE = sum of squared errors SST = total sum of squares For R^2 > 1 would require SSE/SST <0. Since SSE and SST are non-negative (check the formulas, they are the sum of squared differences which are neccessarily non-negative), SSE/SST < 0 is impossible. Bernd