Thank you very much, RW9. Can you send me a link to a source where it would elaborate more on this? I have looked for FORMAT statements within DATA steps and I'm finding much more advanced examples, without enough of an explanation. Maybe I should be looking for a different keyword? Are you saying that because it is applying to the whole Dataset and not a subset, or a specific variable, the order is irrelevant? Here I found this: Example 3: Removing a Format This example disassociates an existing format from a variable in a SAS data set. The order of the FORMAT and the SET statements is important. data rtest;
set rtest;
format x;
run; Source from: http://support.sas.com/documentation/cdl/en/lrdict/64316/HTML/default/viewer.htm#a000178212.htm#a000289670 If they're stating that the order is important, then what would happen if the order was reversed? RW9, do you have another example that you could elaborate on with regard to the BY statement in a DATA step. My understanding from here is that this could also be another example, but there are no examples on the support website (http://support.sas.com/documentation/cdl/en/lrdict/64316/HTML/default/viewer.htm#a000202968.htm).
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