However, if you can visualize it, youll know that the transpose is valid, and youll also know what to expect as output. Transposing data using proc transpose search this guide search. For example, you have data in vertical long format and you are asked to change it to horizontal wide format. In sas, the transpose procedure can perform simple transposes, widetolong, and. Transposing data using proc transpose sas tutorials. The proc transpose is part of the sas language that. This sas software tutorial shows how to use proc transpose to. Many programmers resort to use of the data step to achieve transposition which they believe results in better control. For a data set in wide format such as the one below, we can reshape it into long format using proc transpose. The transpose procedure or how to turn it around sas support. After running my codes sas ods generate very nice output which looks like this. Proc transpose is a powerful yet underutilized proc in the base sas toolset.
Its a very powerful procedure when you need to change the shape of the data. Ods output in result viewer this is the table i actually want to use futher to merge with other variables, but sas file created in explorer along with this output, looks like this. Proc transpose variations, and their output results. This sas software tutorial shows how to use proc transpose to transpose a datasets rows and columns, and discusses when to use a transpose. This paper presents an easy beforeandafter approach to learning proc transpose. This tutorial explains the basic and intermediate applications of proc transpose with examples. One of the reasons for performing data transformation is that different statistical procedures require different data shapes. First, lets see what happens when you use proc transpose on sashelp. Furthermore, we may need our data to be arranged in a particular format in order to use a specific analysis or procedure. Li, city of hope national medical center, duarte, ca abstract a common data managing task for sas programmers is transposing data. How to reshape data wide to long using proc transpose sas. In the following example i will draw the movements on a dataset to exemplify how this process works. Stuelpner, janet, the transpose procedure or how to turn it around, sugi 31, paper 234. The transpose procedure transposes selected variables into observations.
There is a summary sheet at the end of the paper as well for later reference. It contains three sample sas input files, a set of basic proc transpose variations, and their output results. Sas users are unsure of the results it will give and curious about syntax that is often not particularly intuitive. Shoes is the original input dataset specified using data and work.
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