line = 1:10;
ind =[3 5];
for ite=1:length(ind)
     front = abs(line(ind(ite)) - line(ind(ite)-1));
     behind =abs(line(ind(ite)+1) - line(ind(ite)));
     if front < behind
         line(ind(ite))= line(ind(ite)-1);
     else
         line(ind(ite))= line(ind(ite)-1);
     end
end
--
FROM 49.95.98.*