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Smoothes like grp exc but will not smooth at the border (no exclude points at border). Default is 1 node, but neb number_of_border_nodes will set the no_smoothing_zone higher. Thus with this argument one can extract a part of a grid and smooth it with grp exc neb and and insert it into the grid (using using rep lo grid) without having any unpleasant transition zone where the grid is inserted.
log log_number
List info in message area. Gives a message for each log_number grid line.
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