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Programming Tips

Strengthen your programming skills with tips and techniques from the experts

Learn SAS | Programming Tips

Rick WicklinJune 11, 2018 0

6 ways to use the _NULL_ data set in SAS

In SAS, the reserved keyword _NULL_ specifies a SAS data set that has no observations and no variables. When you specify _NULL_ as the name of an output data set, the output is not written. The _NULL_ data set is often used when you want to execute DATA step code

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Programming Tips | SAS Events

Lexi HawksJune 8, 2018 0

SAS Studio: A new way to program in SAS

SAS Studio is the latest way you can access SAS. This newer interface allows users to reach SAS through a web browser, offering a number of unique ways that SAS can be optimized. At SAS Global Forum 2018, Lora Delwiche and Susan J Slaughter gave the presentation, “SAS Studio: A New Way to Program in SAS.” This post reviews the paper, offering you insights of how to enhance your SAS Studio programming performance.

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Learn SAS | Programming Tips

Rick WicklinJune 8, 2018 0

Video: A new syntax for lists in SAS/IML

I recently recorded a short video about the new syntax for specifying and manipulating lists in SAS/IML 14.3. This is a video of my Super Demo at SAS Global Forum 2018. The new syntax supports dynamic arrays, associative arrays ("named lists"), and hierarchical data structures such as lists of lists.

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Programming Tips

Rick WicklinJune 6, 2018 0

Sample and obtain the results in random order

The SURVEYSELECT procedure in SAS 9.4M5 supports the OUTRANDOM option, which causes the selected items in a simple random sample to be randomly permuted after they are selected. This article describes several statistical tasks that benefit from this option, including simulating card games, randomly permuting observations in a DATA step,

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Analytics | Data Visualization | Programming Tips

Robert AllisonJune 4, 2018 0

Using Texas as a unit of measure

Everything's big in Texas - at least that's what they say! Therefore let's have a bit of graphical fun, and use Texas as a unit of measure (let's call it a 'tex'). More on that later - but first, here's a picture of my friend Jennifer posing beside a rather

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Programming Tips

Rick WicklinJune 4, 2018 0

An easy way to make a "Top 10" table and bar chart in SAS

Years ago, I wrote an article about how to create a Top 10 table and bar chart. The program can be trivially modified to create a "Top N" table and plot, such as Top 5, Top 20, or even Top 100. Not long after the article was written, the developer

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Data Visualization | Programming Tips

Robert AllisonJune 1, 2018 0

Can you bypass tariffs with a foreign-trade zone?

With talk of tariffs in the news lately, I'm sure everyone is curious about possible ways to bypass them. One possible loophole is using the foreign-trade zones (FTZs) in the US. What are FTZs, and where are they located? Read along and find out!... The Foreign-Trade Zone act was passed in

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Programming Tips

Melanie CareyMay 31, 2018 0

Exploring interactive reports with SAS Visual Analytics

Interactive reports with SAS Visual Analytics allow you to access the interface and product instantly. Simply choose a report to navigate and explore in our SAS Visual Analytics 8.2 viewer. There are reports for warranty analysis, retail insights, water consumption and quality, banking and risk and network performance.

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Learn SAS | Programming Tips | SAS Administrators

Leonid BatkhanMay 30, 2018 0

Are you developing foolproof solutions?

It is imperative for developers, whether hardware or software engineers, to foresee unintended (probable or improbable) system usages and implement features that will make their creations foolproof, that is protected from misuse. Learn more about developing foolproof solutions with this old Russian anecdote.

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Learn SAS | Programming Tips

Rick WicklinMay 29, 2018 0

6 easy ways to specify a list of variables in SAS

The SAS language provides syntax that enables you to quickly specify a list of variables. SAS statements that accept variable lists include the KEEP and DROP statements, the ARRAY statement, and the OF operator for comma-separated arguments to some functions. You can also use variable lists on the VAR statements

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Data Visualization | Programming Tips

Robert AllisonMay 25, 2018 0

Plotting data on Antarctica - a mapping challenge!

Have you ever tried to plot data on a map of Antarctica ... and been thoroughly frustrated or confused? If you're that person, or even a seasoned map maker wanting to hone your skills, then this blog post is for you! But first, here is a picture to get you

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Learn SAS | Programming Tips

Jane EslingerMay 23, 2018 0

Custom Style Templates: Start Small

SAS author Jane Eslinger shows give you tips for working with PROC TEMPLATE when diving into the Output Delivery System (ODS) world. Learn how to create a custom style template to get the stylized output you want.

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Programming Tips

Rick WicklinMay 21, 2018 0

Position items in a grid

In a recent blog post, Chris Hemedinger used a scatter plot to show the result of 100 coin tosses. Chris arranged the 100 results in a 10 x 10 grid, where the first 10 results were shown on the first row, the second 10 were shown on the second row, and so

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Learn SAS | Programming Tips

Martin MinceyMay 18, 2018 0

How to change your working directory for SAS® with the DLGCDIR DATA step function

Learn how to change your working directory for SAS. Beginning with SAS® 9.4 TS1M4, you can use a new DATA step function, DLGCDIR, to change the location of your working directory.

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Learn SAS | Machine Learning | Programming Tips

SAS KoreaMay 18, 2018 0

[프로그래밍 팁] SAS VDMML로 딥러닝 모델 구축하는 방법

SAS 솔루션으로 다양한 종류의 심층 신경망(DNN;Deep Neural Network) 모델을 구축할 수 있습니다. 구체적으로 컨볼루션 신경망(convolutional neural networks), 순환 신경망(recurrent neural networks), 순방향 신경망(feedforward neural networks), 오토인코더 신경망(autoencoder neural networks) 등을 생성할 수 있는데요. 오늘은 ‘SAS VDMML(Visual Data Mining and Machine Learning)'을 이용해 딥러닝 모델을 구축하는 방법을 자세히 설명해 드리고자 합니다. ‘SAS 클라우드 분석 서비스’를 활용한 딥러닝

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Data Visualization | Learn SAS | Programming Tips

Sanjay MatangeMay 13, 2018 0

A Combined WaterFall and Swimmer Plot

The PharmaSUG 2018 conference was held two weeks ago, with great enthusiasm and a record attendance. The highlight for me was the large spread on visual presentation of data, from papers to poster presentations. I will provide a more detailed report on all the exciting graphical presentations. One topic of

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Health Care | Life Sciences

Analytics | Programming Tips

How to generate random numbers in SAS

Rick WicklinMay 9, 2018 0

Independent streams of random numbers in SAS

In a previous blog post, I discussed ways to produce statistically independent samples from a random number generator (RNG). The best way is to generate all samples from one stream. However, if your program uses two or more SAS DATA steps to simulate the data, you cannot use the same

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Programming Tips

NASA black hole

Chris Hemedinger

Chris HemedingerMay 7, 2018 0

Which random number generator did Thanos use?

WARNING: This blog post references Avengers: Infinity War and contains story spoilers. But it also contains useful information about random number generators (RNGs) -- tempting! If you haven't yet seen the movie, you should make peace with this inner conflict before reading on. Throughout the movie, Thanos makes it clear

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Advanced Analytics | Data Management | Programming Tips

Leonid BatkhanMay 7, 2018 0

SAS tools for GDPR privacy compliant reporting

The European Union’s General Data Protection Regulation (GDPR) taking effect on 25 May 2018 pertains not only to organizations located within the EU; it applies to all companies processing and holding the personal data of data subjects residing in the European Union, regardless of the company’s location. Here are four selected SAS tools for GDPR that allow you to protect personal data in SAS reports by suppressing counts in small demographic group reports.

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Learn SAS | Programming Tips

Jim SimonMay 7, 2018 0

"Wide" versus "Tall" data: PROC TRANSPOSE v. the DATA step

Datasets can present themselves in different ways. Identical data can bet arranged differently, often as wide or tall datasets. Generally, the tall dataset is better. Learn how to convert wide data into tall data with PROC TRANSPOSE.

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Learn SAS | Programming Tips

Jim SimonMay 7, 2018 0

Deleting global macro variables

Do you periodically delete unneeded global macro variables? You should! Deleting macro variables releases memory and keeps your symbol table clean. Learn how the macro language statement that deletes global macro variables and about the %DELETEALL statement that can be a life saver for macro programmers.

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Programming Tips

Rick WicklinMay 7, 2018 0

Independence and overlap in streams of random numbers

Simulation studies require both randomness and reproducibility, two qualities that are sometimes at odds with each other. A Monte Carlo simulation might need to generate millions of random samples, where each sample contains dozens of continuous variables and many thousands of observations. In simulation studies, the researcher wants each sample

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Analytics | Data Visualization | Programming Tips

Robert AllisonMay 4, 2018 0

Lowest unemployment since 1976?

It looks like we've finally recovered from the Great Recession, and there are even claims of record-low unemployment in several U.S. states. Of course claims like that make my data-radar go off, and I wanted to see the numbers for myself. And it's a great excuse for me to create

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Analytics | Data Visualization | Programming Tips

Robert AllisonMay 2, 2018 0

Proof that Southerners lie about their age!

Have you ever lied about your age? When you were younger, perhaps you exaggerated your age to watch an R-rated movie, buy cigarettes, get into a night club, or drink alcohol? And when people reach their 30s or 40s, they might subtract a few years when people ask their age.

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Health Care | Life Sciences

Learn SAS | Programming Tips

EG future layout

Chris Hemedinger

Chris HemedingerApril 30, 2018 0

A productive future for SAS Enterprise Guide

The title of this blog says what you really need to know: SAS Enterprise Guide does have a future, and it's a bright one. Ever since SAS Studio debuted in 2014, onlookers have speculated about its impact on the development of SAS Enterprise Guide. I think that we have been

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Data Visualization | Programming Tips

Robert AllisonApril 30, 2018 0

Keeping track of the oldest people in the world

How old was the oldest person in your family, or the oldest person you personally know? And how do they compare to the oldest people in the world? ... Perhaps you can easily make the comparison, with this cool graph! But before we get started, here's a picture of my

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Health Care | Life Sciences

Data Visualization | Programming Tips

Robert AllisonApril 25, 2018 0

How many planets in our solar system? (... tricky question!)

How many planets are there in our solar system? The answer hasn't always been 9 ... er, I mean 8 (sorry Pluto!). The count has changed throughout history as we got a better understanding of astronomy, discovered new planets, and redefined what a 'planet' is. Wouldn't it be helpful to

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Analytics | Programming Tips

Rick WicklinApril 25, 2018 0

An easier way to run thousands of regressions

SAS programmers on SAS discussion forums sometimes ask how to run thousands of regressions of the form Y = B0 + B1*X_i, where i=1,2,.... A similar question asks how to solve thousands of regressions of the form Y_i = B0 + B1*X for thousands of response variables. I have previously

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Data Visualization | Learn SAS | Programming Tips

Sanjay MatangeApril 24, 2018 0

3D WaterFall Chart - Redux

A while back a user requested to create a 3D WaterFall chart as presented by E Castanon Alvarez et. al. in "3D waterfall plots: a better graphical representation of tumor response in oncology" Annals of Oncology, Volume 28, Issue 3, 1 March 2017, Pages 454–456. I posted a blog article titled

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Health Care | Life Sciences

Data Visualization | Learn SAS | Programming Tips

Jane EslingerApril 24, 2018 0

Background images and the ODS destination for PowerPoint

The ODS destination for PowerPoint uses table templates and style templates to display the tables, graphs, and other output produced by SAS procedures. You can customize the look of your presentation in a number of ways, including using custom style templates and images. Here we'll learn about using background images.

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