Hi, Tom, Pavel and Joe,<br><br>> I'm glad you put that option in, Pavel. However for model-<br>> building it is not so straightforward. Normally we are building into density-modified<br>> maps. Density modification works poorly when a significant set of<br>> reflections is excluded, so this becomes impractical. <br><br>As
I remember it was a paper (by Blanc, ..., Bricogne ? am I wrong?
Ifailed to find it right now) where they faced exactly this
problem.Again, as I remember they suggested to exclude the test-set
reflectionsfrom the map calculation but , to minimize the map
deformation, insteadof them include average Fobs for the corresponding
resolution shell.<br><br>Is it a way to answer the original question / problem ?<br><br>As I understand, a similar technique Pavel already uses to calculate the maps with Fobs missed.<br><br>Best regards,<br><br>Sacha