Strengthen your programming skills with tips and techniques from the experts
Three bestselling SAS Press authors feature their favorite papers from SAS Global Forum 2018.
A SAS programmer recently asked how to interpret the "standardized regression coefficients" as computed by the STB option on the MODEL statement in PROC REG and other SAS regression procedures. The SAS documentation for the STB option states, "a standardized regression coefficient is computed by dividing a parameter estimate by
Using small multiples is a neat way to display a lot of information in a small amount of space. But depending on how deeply you want to analyze and scrutinize the data, you need to be careful in choosing just how small you make your small multiples. Let's look at
Video killed the radio star.... We can't rewind, we've gone too far. -- The Buggles (1979) "You kids have it easy," my father used to tell me. "When I was a kid, I didn't have all the conveniences you have today." He's right, and I could say the same
Have you ever wanted to see examples of all of the output styles that SAS provides? You can run a program and look at the resulting file, styles.html. This post explains more about the styles that you will see including a discussion of attribute priority.
When I'm at a social gathering, someone always asks what type of work I do. I like to keep my social life separate from my work, therefore I usually give a vague answer such as "software" (and quickly change the topic). How vague or specific is your response? How vague
그래프를 만들 때 가장 어려운 작업은 무엇일까요? 바로 데이터를 준비하는 것인데요. 오늘은 엑셀 데이터를 SAS로 가져오고, 전치하고, 첫 열의 값을 데이터 값으로 사용하고, 플롯으로 요약하는 방법을 차례대로 소개해드리고자 합니다. 오늘 예시에서는 학생 대출 채무에 관한 데이터가 사용되는데요. 몇 년 전, 학생 대출 채무가 급증하면서 큰 이슈가 됐었고, 아래는 관련 기사에서 쓰인
Data in the cloud makes it easily accessible, and can help businesses run more smoothly. SAS Viya runs its calculations on Cloud Analytics Service (CAS). David Shannon of Amadeus Software spoke at SAS Global Forum 2018 on his paper, Come On, Baby, Light my SAS Viya: Programming for CAS.
Elections are in the news again, therefore I have been on the lookout for interesting graphs. I recently found some graphs of the Census Current Population Survey (CPS) Voting and Registration Supplement data, and tried to improve them. Follow along if you're interested in voter data, or creating better graphs!
Hash tables are a very powerful and flexible data structure. Most SAS applications of hash tables focus on just one of their many powerful facilities: table lookup. Hash tables are a fantastic table lookup tool and their use for that should never be diminished. However, hash tables can do so
I peruse many different websites to get my news, and I always keep an eye out for good (or bad) presentations of data. I recently saw a posting on reddit claiming "U.S. GDP is greater than the total of all others combined." This news seemed too good to be true
The SGPLOT procedure in SAS makes it easy to create graphs that overlay various groups in the data. Many statements support the GROUP= option, which specifies that the graph should overlay group information. For example, you can create side-by-side bar charts and box plots, and you can overlay multiple scatter
There are many quotes with words of wisdom to help you live your life. But sometimes one quote seems to contradict another. For example, "Don't sweat the small stuff." ... and "The devil is in the details." When it comes to creating graphs (and perhaps living my life in general),
This article shows how to score (evaluate) a quantile regression model on new data. SAS supports several procedures for quantile regression, including the QUANTREG, QUANTSELECT, and HPQUANTSELECT procedures. The first two procedures do not support any of the modern methods for scoring regression models, so you must use the "missing
In many movies, there is often a scene where the star says "We can do this the easy way, or the hard way" (and the hard way usually involves quite a bit of pain). So it is with interrogations ... and so it is with writing SAS code! Today I'm
SAS Viya has opened an entirely new set of capabilities, allowing SAS to analyze on cloud technology in real-time. One of the best new features of SAS Viya is its ability to pair with open source platforms, allowing developers the freedom of language and implementation to integrate with the power
I started my computer career as a Unix system administrator, and when I began using SAS almost 30 years ago it was only natural that I used it on Unix computers (they were the most powerful/capable computers I had access to at the time). I've picked up a lot of
I can recognize several languages when I hear people speaking them (mostly because I lived in the Alexander International Dorm at NC State University). Therefore when I found a map of the most common languages spoken in each US state, it caught my attention, and I decided to try creating my
A programmer recently asked a question on a SAS discussion forum about design matrices for categorical variables. He had generated a design matrix by using PROC GLMMOD and wanted to use the design columns in a subsequent procedure. However, the columns were named COL1, COL2, COL3,..., so he couldn't tell
As you might have guessed from some of my previous blog posts, I'm an avid paddler. I like to paddle boats, and I like to try to go fast! And when I'm considering buying a new boat, it's only natural that I would analyze the data to make an informed
SAS Visual Analytics includes text parsing actions that can help tokenize sentences, and SAS Visual Text Analytics provides even better, more sophisticated methods. This article contains code samples and cites papers for more details.
You should play a little. Add dots. Add color. Your PROC REPORT output does not have to be boring. As a matter of fact, it can be both functional and appealing. Any Unicode value will do, but this blog shows how to use the Unicode value for a dot (filled
Getting started with SAS Viya and RStudio -- making the connection, and submitting my first commands via CAS actions.
Back in SAS 9.3M2 (SAS/STAT 12.1), PROC FREQ introduced mosaic plots to visualize the joint frequencies in a contingency table. By default, the cells in a mosaic plot are colored according to levels of one of the categorical variables in the analysis. However, in 2013 I showed how you can
When you were a kid, were you intrigued by the 99-cent X-ray glasses advertised in the back of the comic books? If you ordered those glasses, you were probably disappointed. Now that you're an adult, how would you like to use computer techniques to "X-ray" your data and look for
Since the late 1990s, SAS has supplied macros for basic bootstrap and jackknife analyses. This article provides an example that shows how to use the %BOOT and %BOOTCI macros. The %BOOT macro generates a bootstrap distribution and computes basic statistics about the bootstrap distribution, including estimates of bias, standard error,
Of course you know how to create graphs ... But do you often find that preparing the data to plot is often the hardest part? Well then, this blog post is for you! I'll be demonstrating how to import Excel data into SAS, transpose the data, use what were formerly column
"Code golf" is a fun programming pastime that challenges you to solve a problem with the least amount of code possible. Like regular golf, the goal is to use fewest code "strokes" to hit the mark. Here's a recent challenge that was posted to me via Twitter. @cjdinger @SASJedi got
Which character variables have the highest frequency count? You can easily determine this using a variety of procedures that calculate frequency count. For example, the FREQ Procedure or the MEANS Procedure. This blog post illustrates this process through two examples.
See how to sample unstructured (text) data using SAS Viya and CAS actions. This post includes complete code to cluster the text documents via k-means, and treats the cluster memberships as strata for analysis.
