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Learn SAS

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

Data Visualization | Learn SAS

Rick WicklinApril 13, 2020 0

Add horizontal and vertical reference lines to SAS graphs: The REFLINE statement

Data tell a story. A purpose of data visualization is to convey that story to the reader in a clear and impactful way. Sometimes you can let the data "speak for themselves" in an unadorned graphic, but sometimes it is helpful to add reference lines to a graph to emphasize

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Learn SAS | Work & Life at SAS

Missy HannahApril 7, 2020 0

Working remotely? A list of 5 ways to spend your down time

As many of us are learning to navigate the changing world we are living in amid the COVID-19 outbreak, and as we care for our loved ones, friends, and our community, many of us now find ourselves working and studying from home much more than we did before. As an

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Data Visualization | Learn SAS

Rick WicklinApril 6, 2020 0

The geometric distribution in SAS

I have written several articles about how to work with continuous probability distributions in SAS. I always emphasize that it is important to be able to compute the four essential functions for working with a statistical distribution. Namely, you need to know how to generate random values, how to compute

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Learn SAS | SAS Events

Chris Hemedinger

Chris HemedingerApril 3, 2020 0

How to share your SAS knowledge with your professional network

SAS Global Forum 2020 is not the conference experience we thought it would be. Thousands of us had planned to gather in person to share our enthusiasm and knowledge about SAS and power of data and analytics. We were going to combine our skills and knowledge to inspire one another

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Analytics | Learn SAS | Programming Tips

Lucas de PaulaApril 2, 2020 0

Extending Excel with Python and SAS

Whether you like it or not, Microsoft Excel is still a big hit in the data analysis world. From small to big customers, we still see fit for daily routines such as filtering, generating plots, calculating items on ad-hoc analysis or even running statistical models. Whenever I talk to customers,

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Learn SAS | Programming Tips

Charu ShankarApril 1, 2020 0

How to land a job as a SAS professional

SAS' Charu Shankar shares six tips for landing a job as a SAS user.

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Data Visualization | Learn SAS

Rick WicklinMarch 30, 2020 0

Smokestack plots: A visualization technique for comparing cumulative curves

A cumulative curve shows the total amount of some quantity at multiple points in time. Examples include: Total sales of songs, movies, or books, beginning when the item is released. Total views of blog posts, beginning when the post is published. Total cases of a disease for different countries, beginning

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Data Visualization | Learn SAS

Rick WicklinMarch 23, 2020 0

Add custom tick marks to a SAS graph

When you create a graph by using the SGPLOT procedure in SAS, usually the default tick locations are acceptable. Sometimes, however, you might want to specify a set of custom tick values for one or both axes. This article shows three examples: Specify evenly spaced values. Specify tick values that

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Learn SAS | Programming Tips

Suzanne MorgenMarch 19, 2020 0

Free e-book: SAS Programming for R Users

At SAS Press, we agree with the saying “The best things in life are free.” And one of the best things in life is knowledge. That’s why we offer free e-books to help you learn SAS or improve your skills. In this blog post, we will introduce you to one

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Learn SAS

Hannah HaskinsMarch 18, 2020 0

Tips and resources for making the most of your SAS experience

Let’s be honest, there is a lot of SAS content available on the web. Sometimes it gets difficult to navigate through everything to find what you need, especially if you are looking for complimentary resources. Training budgets can be limited or already used for the year, but you’re still interested

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Learn SAS | Programming Tips

Rick WicklinMarch 18, 2020 0

Print SAS/IML variables with formats

A SAS/IML programmer asked about the best way to print multiple SAS/IML variables when each variable needs a different format. He wanted the output to resemble the "Parameter Estimates" table that is produced by PROC REG and other SAS/STAT procedures. This article shows four ways to print SAS/IML vectors in

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Learn SAS | Programming Tips

Leonid BatkhanMarch 10, 2020 0

Automating SAS variable labels creation

SAS' Leonid Batkhan shows you how to automate creation of SAS variable labels so tables and reports are easier to read.

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Advanced Analytics | Learn SAS | Machine Learning | Programming Tips

Suzanne MorgenMarch 5, 2020 0

Learn about new data mining and machine learning procedures in SAS Viya

Have you heard that SAS offers a collection of new, high-performance CAS procedures that are compatible with a multi-threaded approach? The free e-book Exploring SAS® Viya®: Data Mining and Machine Learning is a great resource to learn more about these procedures and the features of SAS® Visual Data Mining and

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Learn SAS | Programming Tips

Rick WicklinMarch 4, 2020 0

Store pre-computed matrices in a list

Suppose that a data set contains a set of parameter values. For each row of parameters, you need to perform some computation. A recent discussion on the SAS Support Communities mentions an important point: if there are duplicate rows in the data, a program might repeat the same computation several

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Data Visualization | Learn SAS

Rick WicklinMarch 2, 2020 0

Create a deviation plot to visualize values relative to a baseline

A colleague recently posted an article about how to use SAS Visual Analytics to create a circular graph that displays a year's worth of temperature data. Specifically, the graph shows the air temperature for each day in a year relative to some baseline temperature, such as 65F (18C). Days warmer

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Learn SAS | SAS Administrators

Telecom use cases in customer experience management

Business Analytics Portugal

Business Analytics PortugalFebruary 19, 2020 0

Serviço SAS Premium Support - O que é? A quem se destina? Quais as mais-valias?

Um dos principais focos do SAS é entregar, aos clientes, soluções comprovadas e inovadoras que garantam a melhoria do seu desempenho e os ajudem a diferenciar-se dentro da sua área e mercado de atuação. Ajudá-los a tirar o máximo proveito de cada ferramenta faz também parte da missão do SAS,

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Learn SAS | Programming Tips

Rick WicklinFebruary 19, 2020 0

A list of SAS DATA step functions that do not run in CAS

Are you a statistical programmer whose company has adopted SAS Viya? If so, you probably know that the DATA step can run in parallel in SAS Cloud Analytic Services (CAS). As Sekosky (2017) says, "running in a single thread in SAS is different from running in many threads in CAS."

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Analytics | Learn SAS | SAS Events

Tricia JenkinsFebruary 13, 2020 0

Experience SAS Global Forum: A First-Timer’s View & Tip Sheet

If you’re a SAS user, you know that SAS Global Forum is where you want to be! It’s our premier, can’t-miss event for SAS professionals—that includes thousands of users, executives, partners and academics. It’s also our largest users’ event, organized by users, for users, and this year’s event marks our

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Analytics | Learn SAS | Programming Tips

Rick WicklinFebruary 12, 2020 0

The Johnson system: Which distribution should you choose to model data?

The Johnson system (Johnson, 1949) contains a family of four distributions: the normal distribution, the lognormal distribution, the SB distribution, and the SU distribution. Previous articles explain why the Johnson system is useful and show how to use PROC UNIVARIATE in SAS to estimate parameters for the Johnson SB distribution

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Learn SAS | Programming Tips

Rick WicklinFebruary 10, 2020 0

Find the fractional part of a number

You can represent every number as a nearby integer plus a decimal. For example, 1.3 = 1 + 0.3. The integer is called the integer part of x, whereas the decimal is called the fractional part of x (or sometimes the decimal part of x). This representation is not unique.

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Analytics | Data Visualization | Learn SAS

Rick WicklinFebruary 5, 2020 0

Visualize residual projections for linear regression

A SAS programmer wanted to create a graph that illustrates how Deming regression differs from ordinary least squares regression. The main idea is shown in the panel of graphs below. The first graph shows the geometry of least squares regression when we regress Y onto X. ("Regress Y onto X"

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Analytics | Learn SAS

Rick WicklinJanuary 29, 2020 0

Collinearity diagnostics: Should the data be centered?

In a previous article, I showed how to perform collinearity diagnostics in SAS by using the COLLIN option in the MODEL statement in PROC REG. For models that contain an intercept term, I noted that there has been considerable debate about whether the data vectors should be mean-centered prior to

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Learn SAS | Programming Tips

Leonid BatkhanJanuary 27, 2020 0

Shifting a date by a given number of workdays

This blog post demonstrates process and SAS coding techniques to shift dates by a given number of workdays accounting for weekends and holidays.

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Learn SAS | SAS Events

Shelley Sessoms

Shelley SessomsJanuary 23, 2020 0

Make the most of SAS Global Forum with the session catalog

When I attend a conference, one of the first things I do is look at the agenda. This gives me a good overview of how my time will be spent. The next thing I do is find the detailed breakdown of sessions, so I can start building out my own

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Analytics | Learn SAS

Rick WicklinJanuary 23, 2020 0

Collinearity in regression: The COLLIN option in PROC REG

I was recently asked about how to interpret the output from the COLLIN (or COLLINOINT) option on the MODEL statement in PROC REG in SAS. The example in the documentation for PROC REG is correct but is somewhat terse regarding how to use the output to diagnose collinearity and how

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Learn SAS | Programming Tips

Suzanne MorgenJanuary 13, 2020 0

Foresight is 2020! New books to take your skills to the next level

Are you ready to get a jump start on the new year? If you’ve been wanting to brush up your SAS skills or learn something new, there’s no time like a new decade to start! SAS Press is releasing several new books in the upcoming months to help you stay

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Analytics | Learn SAS

Rick WicklinJanuary 8, 2020 0

3 ways to add confidence limits to regression curves in SAS

Many SAS procedures can automatically create a graph that overlays multiple prediction curves and their prediction limits. This graph (sometimes called a "fit plot" or a "sliced fit plot") is useful when you want to visualize a model in which a continuous response variable depends on one continuous explanatory variable

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Data Visualization | Learn SAS | Programming Tips

Rick WicklinJanuary 6, 2020 0

Top posts from The DO Loop in 2019

Last year, I wrote more than 100 posts for The DO Loop blog. The most popular articles were about SAS programming tips for data analysis, statistical analysis, and data visualization. Here are the most popular articles from 2019 in each category. SAS programming tips Create training, testing, and validation data

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Learn SAS | Programming Tips

Sian RobertsDecember 17, 2019 0

How many people does it take to publish a book?

The next time you pick up a book, you might want to pause and think about the work that has gone into producing it – and not just from the authors.

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Analytics | Learn SAS | Machine Learning | Programming Tips

Nelson Grajales

Nelson GrajalesDecember 11, 2019 0

Adding SAS® procedures to the SASPy interface to Python

Bringing the power of SAS to your Python scripts can be a game changer. An easy way to do that is by using SASPy, a Python interface to SAS allowing Python developers to use SAS® procedures within Python. However, not all SAS procedures are included in the SASPy library. So,

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