07-09-2013 10:43 AM
I have a combined XPT file (file1) which has 10 datasets.
I used PROC COPY to convert it to SAS datasets, then use PROC COPY again to convert those datasets back to a new combined XPT file (file2).
The file2 is slightly bigger then file1. All the datasets in the two XPTs have the same observations and variables.
I am just curious what is the reason.
Thanks for your attention!