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Please, anyone, let me know the style or an example of using
'by='/'by' variable of a PDV(Program Data Vector)
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Answer Posted / rajesh
list of 'by' variables tell SAS how data is stored in
source dataset or how it is to be represented in
output/output dataset.
PDV is used to write the observations in output dataset and
it does not get impected from any BY variable as data in
SAS always read sequencely. If BY vaialbes are there then
it just ensures that source dataset is sorted on list of BY
variables. It does not impact other thing.
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