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4 reasons to use PROC PLM for linear regression models in SAS
Have you ever run a regression model in SAS but later realize that you forgot to specify an important option or run some statistical test? Or maybe you intended to generate a graph that visualizes the model, but you forgot? Years ago, your only option was to modify your program
Fundamentals of SAS Visual Analytics geo maps
Creating a map with SAS Visual Analytics begins with the geographic variable. This blog post explains the first type of geography variable that VA supports: predefined. Future posts will cover the other two types of geography variables in VA: custom coordinates and custom polygons.
How to split a raw file or a data set into many external raw files
Recently, I worked on a cybersecurity project that entailed processing a staggering number of raw text files about web traffic. Millions of rows had to be read and parsed to extract variable values. The problem was complicated by the varying records composition. Each external raw file was a collection of
Webpage scraping made easy with PROC HTTP
SAS Press author Matt Windham shows you how to use the SAS procedure PROC HTTP to grab raw data from a website.
Use PROC GREMOVE and GREDUCE for Nice SGMAP Regions
In the previous Graphically Speaking blog for PROC SGMAP, you used PROC GPROJECT so map regions would match OpenStreetMap and Esri background images. This time, the same British Columbia shapefile is used with: PROC GREMOVE to remove unwanted boundary lines PROC GREDUCE to reduce map data PROC GPROJECT to zoom
Simulate data for a regression model with categorical and continuous variables
This article shows how to use SAS to simulate data that fits a linear regression model that has categorical regressors (also called explanatory or CLASS variables). Simulating data is a useful skill for both researchers and statistical programmers. You can use simulation for answering research questions, but you can also
SAS Press books changed my life story!
Michelle Homes explains how SAS Press books changed her life, and how she donates her books and time to the SAS community whenever she can.
Secrets from a SAS Expert: An Interview with Leonid Batkhan
You’re probably already familiar with Leonid Batkhan from his popular blog right here on The Learning Post. In fact, he’s one of our most engaging authors, with thousands of views and hundreds of comments. Leonid is a true SAS Sensei. He has been at SAS for nearly 25 years and
Navigating SAS documentation to find out about new, modified, and updated features
Learn about the latest product features, changes and upgrade information in new sections of SAS product documentation for SAS® 9.4 and SAS® Viya®. SAS' Kathryn McLawhorn tells us all about them.
Four more tips about hash tables
Now is your chance to learn even more about SAS hash tables with four additional articles on the subject.
How to align the Y and Y2 axes in PROC SGPLOT
When you overlay two series in PROC SGPLOT, you can either plot both series on the same axis or you can assign one series to the main axis (Y) and another to a secondary axis (Y2). If you use the Y and Y2 axes, they are scaled independently by default,
Favorite SAS Press books from a SAS Press author
Does this situation sound familiar? You have a complex analysis that must be finished urgently. The data was delivered late and its quality and structure are far from the expected standard. The time pressure to present the results is huge, and your SAS program is not giving you the expected
Use PROC GPROJECT to Project Choromap Regions Successfully in PROC SGMAP
Sometimes it is difficult to know what parameters to use when projecting map data onto Esri or OpenStreetMaps in PROC SGMAP. The shapefile .PRJ file contains everything you need to set these parameters in PROC GPROJECT. In a previous blog, you saw how to lookup projections at a web site,
Simplify data preparation using SAS data templates
My New Year's resolution: “Unclutter your life” and I hope this post will help you do the same. Here I share with you a data preparation approach and SAS coding technique that will significantly simplify, unclutter and streamline your SAS programming life by using data templates. Dictionary.com defines template as
Top posts from The DO Loop in 2018
Last year, I wrote more than 100 posts for The DO Loop blog. Of these, the most popular articles were about data visualization, SAS programming tips, and statistical data analysis. Here are the most popular articles from 2018 in each category. Data Visualization Visualize repetition in song lyrics: In one
A Graphical Journey
The ODS Graphics software, first released with SAS 9.2, supported creating graphs directly from statistical procedures. Prior to this, very few statistical procedures created graphs on their own, and in most cases creating graphs was a post process or creating the graphs from the saved data using SAS/GRAPH procedures. With
Die eierlegende Wollmilchsau für datengetriebene Entscheidungen – es gibt sie!
Sie lebt in der Cloud und ist sehr genügsam. Als Allesfresser nimmt sie jegliche Art von Daten dankbar entgegen. Seien das nun strukturierte oder unstrukturierte Daten in allen Formen und Facetten … Sie ist einerseits mit sehr wenig zufrieden und holt das Bestmögliche aus wenigen Daten heraus, kann allerdings, wenn
The Model Gift – Transforming Data into Actionable Insights!
SAS for Mixed Models: Introduction to Basic Applications takes you step-by-step through the journey of creating models, enabling you to transform scores of data into actionable insights.
DevOps & SAS: Entwicklung und Betrieb aus einer Hand?
K(o)ennen Sie schon „DevOps“? Machen Sie SAS? Dann lohnt sich eventuell ein frischer Blick auf die Kombination! Denn immer mehr Unternehmen probieren, ihren produktiven Betrieb auch in die Hände der Software-Entwickler zu legen (2 von 3 laut Jenkins) – speziell in der Analyse, insbesondere beim agilen Modellieren und dem Veredeln
Create a probability plot in SAS
Many data analysts use a quantile-quantile plot (Q-Q plot) to graphically assess whether data can be modeled by a probability distribution such as the normal, lognormal, or gamma distribution. You can use the QQPLOT statement in PROC UNIVARIATE to create a Q-Q plot for about a dozen common distributions. However,
FAQs about SAS dates, arrays and managing local PC files
Every so often, SAS Technical Support highlights questions that come in on a regular basis. This is one of those times. Here Kim Wilson describes answers to questions covering SAS dates, arrays, and how to reference local PC files from SAS® Enterprise Guide® and SAS® Studio when those applications connect to a SAS® server in UNIX operating environments.
The essential guide to bootstrapping in SAS
This article describes best practices and techniques that every data analyst should know before bootstrapping in SAS. The bootstrap method is a powerful statistical technique, but it can be a challenge to implement it efficiently. An inefficient bootstrap program can take hours to run, whereas a well-written program can give
PROC SGMAP using CSV Files, GINSIDE and GEODIST to Plot Places of Interest
As mentioned in other PROC SGMAP blogs, several SAS/GRAPH procedures have been moved to 9.4M6 Base SAS to be used with PROC SGMAP. You can use these to create PROC SGMAP output even when using the free SAS University edition. In this blog you will use the: IMPORT procedure for
Take your SAS exam from home or office
SAS has partnered with Pearson VUE to offer Online Proctored for all public SAS exams.
머신러닝 해석력 시리즈 4탄: 라임(LIME)으로 모델 해석력 개선하기!
그 동안 머신러닝 해석력 시리즈를 통해서 머신러닝의 부분 의존성(PD; Partial Dependence), 데이터 세트 해석 등을 소개해드렸는데요. 오늘은 라임(LIME; Local Interpretable Model-Agnostic Explanation)을 통해 머신러닝 모델의 해석력을 개선할 수 있는 방법에 대해서 알아보겠습니다. 머신러닝 모델 해석력 시리즈 1탄, 2탄, 3탄을 놓치셨다면 아래 링크를 통해 확인해주세요! 머신러닝 해석력 시리즈 1탄: 인공지능(AI)과 머신러닝을 신뢰하기 위한 필수
Navigating the Candy Wall of SAS Support Resources
While support.sas.com remains the holy grail of SAS support resources, there are so many good choices, it can sometimes be hard to know where to start. That’s why we’ve put together a new guide to make things easier for new SAS users: the SAS Starter Kit.
Visualize Christmas songs
The best way to spread Christmas cheer is singing loud for all to hear! -Buddy in Elf In the Christmas movie Elf (2003), Jovie (played by Zooey Deschanel) must "spread Christmas cheer" to help Santa. She chooses to sing "Santa Claus is coming to town," and soon all of New
The SGPIE Procedure - Part 2
The SAS 9.4M6 software includes a new SGPIE procedure (preproduction) as introduced in the recent article - The SGPIE Procedure. In that article, I described the basic features of the two statements supported in the procedure, the PIE and the DONUT, with some examples. It is my humble opinion that
Government Healthcare Data Ensemble Modeling
Joseph Woodside discusses the use of using ensemble modeling in SAS for fraud detection and readmissions.