On Wed, Jun 18, 2014 at 11:50 PM, <subhabangal...@gmail.com> wrote: > Thank you for the reply. But as I checked it again I found, > f_prev[k] is giving values of f_curr[st] = e[st][x_i] * prev_f_sum > which is calculated later and again uses prev_f_sum.
f_prev is the f_curr that was calculated on the previous iteration of the loop. At each iteration after the first, the script calculates f_curr based on the value of f_prev, that is, the old value of f_curr. Then it reassigns the newly computed f_curr to f_prev, making it now the previous, and on the next iteration it creates a new dict to store the next f_curr. Does that make sense? -- https://mail.python.org/mailman/listinfo/python-list
