Interleaving combines individual sorted SAS data sets into one sorted data set. Interleaving SAS Data Sets (Sorted Stacked Data Set) Note : The stacked data set is not sorted because we have not used BY statement. Let's create two data sets - Data Set I and Data Set II Concatenate two data sets vertically / Appending Data Sets For example, you have multiple human records files from various departments of your company and you are asked to join them so that there would be a single file containing information of all the departments. It is one of the most frequently data manipulation task in analytics work. It can be done with data step method, PROC SQL as well as procedure called PROC APPEND to accomplish it. In SAS, there are various method to append data sets. This tutorial explains how to combine / append two data sets in SAS.
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