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2011 Jul 30
4
Replacing null values
I would like to reorder a two-column table by column A, then fill column B with the values above it. For example: Original:A B2 545 NA8 784 NULL3 269 NULL First sort by column A:A B2 543 264 NULL5 NA8 789 NULL Then replace null/na values in column B with the value above it:A B2 543 264 265 268 789 78 What is the best way to do this?Jeff [[alternative HTML version deleted]]