Free SAS
SAS, Inc., has made available two free versions of SAS to Windows, Mac, and Linux users:
- SAS University Edition
- SAS OnDemand
Although free, they are "real" SAS. However, they can only be used for learning and educational purposes and for academic research at VCU that is not being published for profit.
The major differences between them are:
- SAS University Edition is installed on and runs on your local computer (Windows, Mac, or Linux).
- SAS OnDemand runs "in the cloud" instead of on your local computer. You use a web browser to access it. It contains a few more products than SAS University Edition.
Both free SAS versions provide the following products:
- Base SAS
- SAS/STAT
- SAS/IML
- SAS/ACCESS Interface to PC Files
- SAS Studio
SAS OnDemand provides these additional products:
- SAS/GRAPH
- SAS/ETS
- SAS/OR
- SAS/QC
If you create a course in SAS OnDemand (discussed below), these additional products are available for certain platforms (W –Windows, L –Linux):
- SAS Enterprise Guide (W)
- SAS Enterprise Miner (W L)
- SAS Text Miner (W L)
- SAS Credit Scoring (W)
- SAS Forecast Server (W)
- SAS Enterprise Miner server (W L)
- SAS Enterprise Miner client (W L)
This brief feature comparison chart compares the two free versions, along with "traditional" SAS (the SAS Education Analytical Suite). If desired, you can run PROC SETINIT in all three environmentsto display thethe complete list of products that are licensed in each.
Both free versions use SAS Studio, which is similar to the traditional SAS programming environment. It has the usual SAS editor, log, and results windows, plus it offers some extra facilities and features that are very handy. Several introductory tutorials are available at SAS Studio video library (best viewed in full screen mode). Also, Biostatistics by Example Using SAS Studio offers an introduction to SAS Studio (VCU users can read this online for free). (If you have "traditional" SAS 9.4 installed on a PC, you should also have SAS Studio installed and can launch it from the Start menu, if you wishto try it out.)
Below is additional information about each free SAS version.
SAS OnDemand:
- SAS OnDemand runs "in the cloud." That is, you do not install SAS on your computer. All SAS processing is performed on a remote SAS server that is maintained by SAS, Inc. An Internet connection is required. You use a web browser to access SAS OnDemand.
- This getting started page has some basic information and videos. Be sure to watch the "Register and Log In" video.
- To use SAS OnDemand, you must first register with SAS by visiting register for SAS OnDemand.
- If desired, you can easily create a "course" in SAS OnDemand and then invite students (or anyone) to enroll in the course. Each student must also register with SAS.
- If you create a course in SAS OnDemand, you and your students can access the additional productslisted above on the previous page.
- Anyone can create a course. So, if you only want to use those extra products, you can create a "dummy" course, just to get access to the products for yourself. That is, you do not then have to enroll any students or otherwise make use of the course.
- When usingthe products in SAS OnDemand, you can only open and save files in the cloud (i.e., on the remote server). However, you can separately(and easily) upload files from your local computer to the cloud (and then use them there), and you can download files from the cloud to your local computer. When usingSAS Enterprise Guide, you can also open/save files directly on your computer (no separate upload/download needed). However,files directly uploaded into EG only remain available during your current EG session, unless you download or save them before the session ends.
- There is a 5 GB file storage limit for your files in the cloud. If you have created any courses, you can store an additional 2 GB for use in those courses.
- Additional resources:
- SAS OnDemand User's Guide
- Uploading and Accessing Local Data
SAS University Edition (UE):
- Using SAS UE does not require an Internet connection, except initially when downloading its installation files. All SAS processing is performed on your local computer.
- There are no file storage limits, since all files are stored on your computer.
- Setting up SAS UE requires that you first download and install a free "virtual machine" on your PC or Mac. This procedure is fairly straightforward, and SAS provides documentation on their website for doing this. Also, the introduction to SAS UE book noted below contains installation documentation. And, here is an independent video that describes installation in Windows. [Note: If you use VirtualBox for your virtual machine, you must use version 5.2.6; there is a known problem with version 5.2.8.] [Note: For Windows 7, you may have to change a BIOS setting on your PC.]
- Here is the getting started page for obtaining SAS UE (click the "Get free software" link).
- Additional resources:
Tips on Using SAS University Edition
An Introduction to SAS University Edition *
Essential Statistics Using SAS University Edition *
* VCU users can read these books online for free via Safari Books Online, using these lniks.
- Usage note: The instructions for installing SAS UE will have you create a "shared" folder named myfolderson your computer. You can later use that folder within SAS UE, for example when opening or saving files.
When you use SAS UE, you refer to that folder as follows (literally):
/folders/myfolders
For example, here is a program you might write within SAS UE toread raw data from a text file(named somedata.txt) located in that shared folder andto create a SAS dataset (named results) in that folder:
LIBNAME abc '/folders/myfolders';
DATA abc.results;
INFILE '/folders/myfolders/somedata.txt';
INPUT id age;
RUN;