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Learn SAS

Learn about the latest tips, tutorials, upcoming events and certifications

Data Visualization | Learn SAS | Programming Tips

Leonid BatkhanAugust 29, 2014 0

Drawing overlays on SAS-generated Google maps

➤ DISCLOSURE! In June 2018 Google introduced changes to the way it handles its Maps platform. They now require API key in order to embed a map, plus Google Maps "projects" must now be associated with a billing account. Unless these new Google rules are met, Google maps described in

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Learn SAS

Rick WicklinAugust 25, 2014 0

Choosing bins for histograms in SAS

When you create a histogram with statistical software, the software uses the data (including the sample size) to automatically choose the width and location of the histogram bins. The resulting histogram is an attempt to balance statistical considerations, such as estimating the underlying density, and "human considerations," such as choosing

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Learn SAS

Rick WicklinAugust 11, 2014 0

Tips for learning the SAS/IML language

A SAS customer wrote, "I have access to PROC IML through SAS OnDemand for Academics. What is the best way for me to learn to program in the SAS/IML language? How do I get started with PROC IML?" That is an excellent question, and I'm happy to offer some suggestions.

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Analytics | Learn SAS

Eric RosslandAugust 4, 2014 0

A tale of two administrators

You are the new SAS Administrator. After the initial shock or excitement, you sit back and wonder, “What does that MEAN???” In an enterprise environment there are often divisions of duties. The SAS Intelligence Platform is no exception. Just take a look at the architecture. Just looking at this picture,

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Learn SAS

Rick WicklinJuly 30, 2014 0

Overview of new features in SAS/IML 12.3

Unless you diligently read the "What's New" chapter for each release of SAS software, it is easy to miss new features that appear in the language. People who have been writing SAS/IML programs for decades are sometimes surprised when I tell them about a useful new function or programming feature.

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Data Visualization | Learn SAS | Programming Tips

Leonid BatkhanJuly 24, 2014 0

Live Google maps in SAS -- multiple markers

➤ DISCLOSURE! In June 2018 Google introduced changes to the way it handles its Maps platform. They now require API key in order to embed a map, plus Google Maps "projects" must now be associated with a billing account. Unless these new Google rules are met, Google maps described in

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Advanced Analytics | Learn SAS | Programming Tips

Rick WicklinJuly 16, 2014 0

How to share SAS/IML programs with the world

Have you written a SAS/IML program that you think is particularly clever? Are you the proud author of SAS/IML functions that extend the functionality of SAS software? You've worked hard to develop, debug, and test your program, so why not share it with others? There is now a location for

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Learn SAS | Programming Tips

Charu ShankarJuly 11, 2014 0

Getting things in order with PROC SQL, macro and a SAS function

Order must be the most frequent cry for help in the SAS classroom. “HELP,” said my student in the classroom. “I work with messy health data. My users want to see data in this order.” T1.col1, t1.col2, t1.col3, t1.col4, t2.col5, t1.col6 and list the remaining columns in column position from

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Learn SAS | SAS Administrators

SAS toolbox: macro functions

Leonid BatkhanJuly 9, 2014 0

Setting up SAS Business Intelligence environments – the right way

When new SAS users get introduced to the SAS Business Intelligence software (SAS BI), along with the thrill of a wide spectrum of new and desirable functionality, almost always comes a state of confusion – if not panic. How do we go about adapting it to our organization IT guidelines?

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Learn SAS

Chris Hemedinger

Chris HemedingerJune 12, 2014 0

New course: Developing Custom Tasks for SAS Enterprise Guide

This probably won't surprise any of my regular readers: "SAS custom tasks" is one of my favorite topics to talk about. Since 2007, I've written blogs about how you can use custom tasks to extend SAS Enterprise Guide and the SAS Add-In for Microsoft Office. I've shared lots of examples,

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Learn SAS

Stephen MistlerJune 10, 2014 0

Producing normal density plots with shading

When teaching statistics, it is often useful to produce a normal density plot with shading under the curve. For example, consider a one-sided hypothesis test. An alpha value of .05 would correspond to a Z-score cutoff of 1.645. This means that 95% of a standard normal curve falls below a

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Advanced Analytics | Learn SAS

Rick WicklinJune 9, 2014 0

How to generate a grid of points in SAS

In many areas of statistics, it is convenient to be able to easily construct a uniform grid of points. You can use a grid of parameter values to visualize functions and to get a rough feel for how an objective function in an optimization problem depends on the parameters. And

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Data Visualization | Learn SAS | Programming Tips

Leonid BatkhanJune 6, 2014 0

Spice up SAS output with live Google maps

➤ DISCLOSURE! In June 2018 Google introduced changes to the way it handles its Maps platform. They now require API key in order to embed a map, plus Google Maps "projects" must now be associated with a billing account. Unless these new Google rules are met, Google maps described in

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Learn SAS

Rick WicklinJune 2, 2014 0

Specify formats when you write vectors to a data set

Sometimes you have data in SAS/IML vectors that you need to write to a SAS data set. By default, no formats are associated with the variables that you create from SAS/IML vectors. However, some variables (notably dates, times, and datetimes) should have formats associated with the data values. You can

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Learn SAS

Rick WicklinMay 27, 2014 0

An easy way to generate a vector of letters

A little-known but useful feature of SAS/IML 12.3 (which was released with SAS 9.4) is the ability to generate a vector of lowercase or uppercase letters by using the colon operator (:). Many SAS/IML programmers use the colon operator to generate a vector of sequential integers: proc iml; x =

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Learn SAS

Rick WicklinMay 14, 2014 0

Tips for concatenating strings in SAS/IML

Last week, as part of an article on how spammers generate comments for blogs, I showed how to generate random messages by using the CATX function in the DATA step. In that example, the strings were scalar quantities, but you can also concatenate vectors of strings in the SAS/IML language.

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Learn SAS | Programming Tips

Maggie MillerMay 12, 2014 0

SAS tutorial: Create simple scatter plots with two variables using SAS

This SAS tutorial video will show you how to generate plots for two continuous numeric variables with Base SAS. Basic scatter plots, linear or curvilinear regression lines, confidence intervals or ellipses, and multiple plot overlays are demonstrated. To learn more about this topic, check out our SAS Programming 1: Essentials

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Advanced Analytics | Learn SAS

Rick WicklinMay 5, 2014 0

Blanks and lengths: Understanding SAS/IML character vectors

SAS programmers are probably familiar with how SAS stores a character variable in a data set, but how is a character vector stored in the SAS/IML language? Recall that a character variable is stored by using a fixed-width storage structure. In the SAS DATA step, the maximum number of characters

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Learn SAS | Programming Tips | SAS Administrators

Leonid BatkhanMay 1, 2014 0

Autoexecs—the SAS Enterprise Guide advantage

As I was preparing for a customer introduction to using SAS Enterprise Guide, I asked them to send me all the questions they had regarding the Enterprise Guide usage. It turned out that many of their questions can be answered with a single feature called an autoexec, or automatically executable

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Learn SAS

Rick WicklinApril 14, 2014 0

Summary of new features in SAS/IML 12.1

I enjoy blogging about new functionality in the SAS/IML language because I can go into more depth and provide more complicated examples than the SAS/IML documentation. Today's article is a summary of all of my posts about features that were added to SAS/IML 12.1, which shipped in August 2012 as

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Learn SAS | Programming Tips

Maggie MillerApril 10, 2014 0

SAS tutorial: Print a simple listing with SAS

In this tutorial video, you will learn to print a simple listing with Base SAS. You see how to write a PRINT procedure step to display a SAS data set. You also see how to use statements and options to subset observations and variables and enhance the report. Learn

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Learn SAS

Rick WicklinApril 9, 2014 0

The Hilbert matrix: A vectorized construction

The Hilbert matrix is the most famous ill-conditioned matrix in numerical linear algebra. It is often used in matrix computations to illustrate problems that arise when you compute with ill-conditioned matrices. The Hilbert matrix is symmetric and positive definite, properties that are often associated with "nice" and "tame" matrices. The

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Learn SAS | Programming Tips

Maggie MillerApril 3, 2014 0

SAS tutorial: Creating a new variable in SAS

This SAS tutorial video will show you how to create a new variable with Base SAS. During the step-by-step video, you will see exactly how to create and modify numeric and character variables using assignment statements in a DATA step. Watch and learn… To learn more about the steps in

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Learn SAS

Rick WicklinMarch 31, 2014 0

SAS/IML available to all students through SAS Analytics U

When spontaneous applause broke out during Dr. Jim Goodnight's presentation at the opening session of SAS Global Forum 2014, I was one of the people cheering the loudest. The SAS CEO had just announced free software for students and professors at universities around the world. The SAS University Edition will

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Learn SAS

SAS Statistics by Example

Shelly GoodinMarch 27, 2014 0

SAS author's tip: Displaying multiple box plots for each value of a categorical variable

This week's SAS tip is from superstar author Ron Cody and his very popular book SAS Statistics by Example. Ron has been using SAS (and writing about SAS) for a long time. And he communicates his vast expertise in a friendly, easy-to-understand manner. If you've used any of Ron's books, I'm sure you'll agree. The following

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Learn SAS | Programming Tips | Students & Educators

Nadja YoungMarch 27, 2014 0

Calling all High School STEM educators! Teach Your Students 21st Century Computer Science Skills

STEM skills are essential for many of the fastest-growing and most lucrative occupations. And SAS programmers are in high demand in all fields. A number of reports have documented a critical talent shortage, especially for graduates with advanced degrees in math, computer science or computer engineering. (See Running on Empty, Report to

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Education | Government

Learn SAS

Maggie MillerMarch 27, 2014 0

SAS tutorials: Filter and sort data in SAS

These two tutorial videos will show you how to filter and sort data in Base SAS. In this first video, you will learn to use a WHERE statement in Base SAS to filter or subset SAS data. Data sets can be very large and filtering data enables you to select

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Advanced Analytics | Learn SAS

Rick WicklinMarch 17, 2014 0

Finding elements in one vector that are not in another vector

The SAS/IML language has several functions for finding the unions, intersections, and differences between sets. In fact, two of my favorite utility functions are the UNIQUE function, which returns the unique elements in a matrix, and the SETDIF function, which returns the elements that are in one vector and not

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Learn SAS

Rick WicklinMarch 10, 2014 0

How to get started with SAS: Free videos for beginners

On most Mondays I blog about a function, programming technique, or resource that is useful for programmers who are getting started with SAS software. Recently I learned that my colleagues in the SAS education division have been hard at work developing a series of short videos that explain basic tasks

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Learn SAS

Rick WicklinMarch 3, 2014 0

Aborting a SAS/IML program upon encountering an error

A colleague sent me an interesting question: What is the best way to abort a SAS/IML program? For example, you might want to abort a program if the data is singular or does not contain a sufficient number of observations or variables. As a first attempt would be to try

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