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Programming Tips

Strengthen your programming skills with tips and techniques from the experts

Programming Tips

Rick WicklinJanuary 22, 2018 0

Create lists by using a natural syntax in SAS/IML

SAS/IML 14.3 (SAS 9.4M5) introduced a new syntax for creating lists and for assigning and extracting item in a list. Lists (introduced in SAS/IML 14.2) are data structures that are convenient for holding heterogeneous data. A single list can hold character matrices, numeric matrices, scalar values, and other lists, as

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Data Visualization | Programming Tips

Sue MorrisonJanuary 19, 2018 0

Common annotate pitfalls and how to avoid them

The SAS/GRAPH® Annotate Facility is often viewed as a mysterious programming abyss that many SAS users do not wish to dive into, in part because of some not-so-obvious pitfalls that they might experience when using it. I view annotation as a frequently misunderstood and needlessly feared but powerful tool that

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Data Visualization | Programming Tips

Warren F. KuhfeldJanuary 19, 2018 0

Advanced ODS Graphics: DRAW statements (part 2)

This post provides examples of DRAW statement syntax and links to the documentation.

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Analytics | Data Visualization | Programming Tips

Robert AllisonJanuary 19, 2018 0

Polishing up your Bitcoins!

With all the talk about Bitcoin in the news lately, I decided it was time I created a Bitcoin graph! Follow along as I track down the data, create a graph, and then polish up that graph to make it shine. But before we get started, here's a little example

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Analytics | Data Visualization | Programming Tips

Robert AllisonJanuary 17, 2018 0

Shedding some light on the lottery!

Have you ever played the lottery? Have you ever heard people bragging about all the money they've won? Does it make you want to play? ... We've had an Education Lottery here in North Carolina for over 10 years, but I still didn't really know much about it - therefore I

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Banking | Education | Government | Retail | Sports & Entertainment

Programming Tips

Chris Hemedinger

Chris HemedingerJanuary 16, 2018 0

How to secure your REST API credentials in SAS programs

I've used SAS with a bunch of different REST APIs: GitHub, Brightcove, Google Analytics, Lithium, LinkedIn, and more. For most of these I have to send user/password or "secret" application tokens to the web service so that it knows who I am and what data I can retrieve. I do

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Data Visualization | Programming Tips

Warren F. KuhfeldJanuary 15, 2018 0

Advanced ODS Graphics: DRAW statements (part 1)

DRAW statements provide to GTL what SG annotation provides to the SG procedures--a way to add text, shapes, lines, and arrows to graphs.

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Learn SAS | Programming Tips

Lora D. DelwicheJanuary 15, 2018 0

SAS Enterprise Guide tools for programmers

If you are a SAS programmer, you may wonder why you should read this. After all isn’t SAS Enterprise Guide just for folks who don’t want to be bothered writing SAS code? SAS Enterprise Guide is just point, click, and get results, right? Well there is a lot more to

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Analytics | Programming Tips

Rick WicklinJanuary 15, 2018 0

Data unavailable? Use the "eyeball distribution" to simulate

Last week I got the following message: Dear Rick: How can I create a normal distribution within a specified range (min and max)? I need to simulate a normal distribution that fits within a specified range. I realize that a normal distribution is by definition infinite... Are there any alternatives,

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Programming Tips

Chris Hemedinger

Chris HemedingerJanuary 11, 2018 0

How to list your mapped drives in a SAS program

If you work in a team environment, you might be accustomed to using mapped network drives for source data folders or to publish results. If you've recently moved to a SAS server environment, you might not have those mapped drives available. How can you tell? This question was posted on

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Data Visualization | Learn SAS | Programming Tips

Sanjay MatangeJanuary 11, 2018 0

A 3D waterfall chart

A few months ago, a user inquired about a chart that showed tumor response and treatment duration for each subject on 2 different planes of a 3D view. The data was really 2D, with one independent variable (the subject id) and two or more response values. I had provided an

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Health Care | Life Sciences

Analytics | Programming Tips

Chevell ParkerJanuary 10, 2018 0

How to code in Python with SAS 9.4

The SAS® platform is now open to be accessed from open-source clients such as Python, Lua, Java, the R language, and REST APIs to leverage the capabilities of SAS® Viya® products and solutions. You can analyze your data in a cloud-enabled environment that handles large amounts of data in a

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Learn SAS | Programming Tips

Rick WicklinJanuary 10, 2018 0

10 posts from 2017 that deserve a second look

Last week I wrote about the 10 most popular articles from The DO Loop in 2017. My most popular articles tend to be about elementary statistics or SAS programming tips. Less popular are the articles about advanced statistical and programming techniques. However, these technical articles fill an important niche. Not

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Data Visualization | Programming Tips

Warren F. KuhfeldJanuary 9, 2018 0

What you need to know about the graph template and data object in PROC SGPLOT

PROC SGPLOT looks at the PROC statements, it looks at the data, and it writes a template that might depend on the data. If you want to understand how the graph is created, you need to look at the PROC SGPLOT code, the graph template and data objects that it constructs, and the final graph.

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Analytics | Data Visualization | Programming Tips

Robert AllisonJanuary 9, 2018 0

Price of marijuana, across the US

As marijuana has become legal in several states, it's been a frequent topic of interest in the news. And as with any interesting topic, I like to find useful ways to visually analyze the data. In this case, let's have a look at the price of marijuana, and how it

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Sports & Entertainment | Travel

Data Visualization | Programming Tips

Warren F. KuhfeldJanuary 8, 2018 0

Displaying a grouped regression fit plot along with the parameter estimates

Usually, you use axis tables when there is a clear link between the rows of the axis table and the graph. I'll show how to use an axis table to create a table that is independent of the graph. This post also uses discrete attribute maps.

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Analytics | Data Visualization | Programming Tips

Robert AllisonJanuary 8, 2018 0

Which US states require an ID to vote?

The first time I voted (back in the 1980s), I was very surprised that I didn't have to show any kind of identification. I assumed it was because I lived in a small North Carolina town of 300 people where "everybody knew everybody" ... but they told me that nobody

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Data Visualization | Learn SAS | Programming Tips

Rick WicklinJanuary 8, 2018 0

Label multiple regression lines in SAS

A SAS programmer asked how to label multiple regression lines that are overlaid on a single scatter plot. Specifically, he asked to label the curves that are produced by using the REG statement with the GROUP= option in PROC SGPLOT. He wanted the labels to be the slope and intercept

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Data Visualization | Programming Tips

Warren F. KuhfeldJanuary 5, 2018 0

Advanced ODS Graphics: Processing ODS OUTPUT data sets from PROC SGPLOT

This post shows you how to run PROC SGPLOT, create smooth curves by using penalized B-splines, use ODS OUTPUT to create an output data set from PROC SGPLOT, and process it to display drop lines.

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Analytics | Data Visualization | Programming Tips

Robert AllisonJanuary 3, 2018 0

Which are the oldest .com domains?

Over the New Year's weekend, I was listening to the re-broadcast of Dick Clark's Top 100 music countdown from the 1980s ... it was the music from my high school and college years, when synthesizers and fun-rap music popped onto the scene. Another thing that started in the 1980s was

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Learn SAS | Programming Tips

Rick WicklinJanuary 3, 2018 0

The top 10 posts from The DO Loop in 2017

I wrote more than 100 posts for The DO Loop blog in 2017. The most popular articles were about SAS programming tips, statistical data analysis, and simulation and bootstrap methods. Here are the most popular articles from 2017 in each category. General SAS programming techniques INTCK and INTNX: Do you

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Analytics | Data Visualization | Programming Tips

Robert AllisonDecember 22, 2017 0

What Wikipedia pages are the most popular?

When I was growing up, our family had a bookcase containing a set of encyclopedias - it was where I went to obtain information and facts about various things, to satisfy my curiosity and impress my friends. Now that we have the Internet, Wikipedia has taken the place of encyclopedias

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Data Visualization | Programming Tips

Teri PatsilarasDecember 21, 2017 0

Relative Period Report in SAS Visual Analytics

Another report requirement came my way and I wanted to share how to use our Visual Analytics’ out-of-the-box relative period calculations to solve it. Essentially, we had a customer who wanted to see a metric for every month, the previous month’s value next to it, and lastly the difference between

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Learn SAS | Programming Tips | SAS Administrators

Leonid BatkhanDecember 19, 2017 0

Running SAS programs in batch under Unix/Linux

While SAS program development is usually done in an interactive SAS environment (SAS Enterprise Guide, SAS Display Manager, SAS Studio, etc.), when it comes to running SAS programs in a production or operations environment, it is routinely done in batch mode. Why run SAS programs in batch mode? First and

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Data Visualization | Learn SAS | Programming Tips

Sanjay MatangeDecember 19, 2017 0

Getting started with SGPLOT - Part 9 - Bubble Plot

This is the 9th installment of the "Getting Started" series, and the audience is the user who is new to the SG Procedures. It is quite possible that an experienced users may also find some useful nuggets here. In this article, we will cover the basics of the BUBBLE plot.

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Programming Tips

Kim WilsonDecember 18, 2017 0

What can compression do for you?

Compressing a data set is a process that reduces the number of bytes that are required to represent each observation in a file. You might choose to enable compression to reduce the storage requirements for the file and to lessen the number of I/O operations that are needed to read

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Analytics | Data Visualization | Programming Tips

Robert AllisonDecember 18, 2017 0

Counting fast-food calories over the holiday

Most of us put on a few pounds over the holidays. It's difficult not to, with the holiday dinners, and then all the special desserts, snacks, and candies. But there might also be another source of extra calories that you hadn't thought about - fast-food! Let's have a look at

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Data Visualization | Programming Tips

Robert AllisonDecember 15, 2017 0

What do they call Santa in other countries?

With the Christmas holiday approaching, I got to wondering what they call Santa in other countries. Of course, some countries don't celebrate Christmas - but most countries at least have some sort of "winter holiday," and most also have some tradition of gift-giving. So, I guess the better question might

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Sports & Entertainment | Travel

Data Visualization | Learn SAS | Programming Tips

Ed OdomDecember 14, 2017 0

SGMAP: Now in BASE SAS!

Data with a geographic component begs to be mapped. That capability is now available to all SAS users. A new mapping procedure in the fifth maintenance release of 9.4 (SAS 9.4M5) allows any user to easily plot data on a map. Unlike previous mapping applications with SAS, the SGMAP procedure

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Energy & Utilities

Analytics | Data Visualization | Programming Tips

Robert AllisonDecember 13, 2017 0

Timeline of all the U.S. presidents

I was recently reading the Wikipedia page about the U.S. presidents. There was a table with a lot of interesting data, but I thought it would be much easier to get a handle on the information if there was also a timeline graph. So, of course, I set out to

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