Blogs

Blogs

Data Visualization

Get the right information, with visual impact, to the people who need it

Analytics | Data Visualization | Learn SAS

Rick WicklinJune 19, 2019 0

Influential observations in a linear regression model: The DFFITS and Cook's D statistics

A previous article describes the DFBETAS statistics for detecting influential observations, where "influential" means that if you delete the observation and refit the model, the estimates for the regression coefficients change substantially. Of course, there are other statistics that you could use to measure influence. Two popular ones are the

Read More

Analytics | Data Visualization | Learn SAS

Rick WicklinJune 17, 2019 0

Influential observations in a linear regression model: The DFBETAS statistics

My article about deletion diagnostics investigated how influential an observation is to a least squares regression model. In other words, if you delete the i_th observation and refit the model, what happens to the statistics for the model? SAS regression procedures provide many tables and graphs that enable you to

Read More

Data Visualization | Programming Tips

Robert AllisonJune 14, 2019 0

Fine-tuning the date axis in your bar chart

In these modern times, my utility bill has a bar chart so I can see how my current consumption compares to my historical usage. I decided to create my own version of this utility bill bar chart, and make a few improvements along the way. If you're into SGplot bar

Read More

Energy & Utilities

Data Visualization | Programming Tips

Robert AllisonJune 12, 2019 0

Converting from SAS/Graph to ODS Graphics - color control

In this 'Rosetta Graph' example, I demonstrate how to control bar chart colors in Gchart and SGplot. But first, here's a little diversion... some artwork in my office here at SAS. There's a *lot* of artwork hanging around at SAS, but this particular painting wasn't created by the SAS artists

Read More

Data Visualization | Programming Tips

Robert AllisonJune 6, 2019 0

Converting from Gchart to SGpie - simple pie chart

For my third 'Rosetta Graph' example, I will focus on a simple pie chart. Hopefully this example will show you how to convert your SAS/Graph Proc Gchart pies into almost-identical Proc SGpie pies. And speaking of almost-identical pies, here are two beautiful pies my friend Beth made - which one

Read More

Data Visualization | Learn SAS | Programming Tips

Rick WicklinJune 5, 2019 0

Plot a family of curves in SAS

A family of curves is generated by an equation that has one or more parameters. To visualize the family, you might want to display a graph that overlays four of five curves that have different parameter values, as shown to the right. The graph shows members of a family of

Read More

Data Visualization | Programming Tips

Robert AllisonJune 4, 2019 0

Converting from Gchart to SGplot - simple bar chart

You've probably heard of the famous Rosetta Stone. It had the same decree written on it in both ancient Egyptian and Greek, and was an essential key to help modern historians decipher and translate the ancient Egyptian hieroglyphs. To help the 'old timers' (like me) shift from using SAS/Graph to the

Read More

Data Visualization | Learn SAS | Programming Tips

Rick WicklinJune 3, 2019 0

Graph wide data and long data in SAS

Statistical programmers and analysts often use two kinds of rectangular data sets, popularly known as wide data and long data. Some analytical procedures require that the data be in wide form; others require long form. (The "long format" is sometimes called "narrow" or "tall" data.) Fortunately, the statistical graphics procedures

Read More

Analytics | Data Visualization | Learn SAS

Rick WicklinMay 30, 2019 0

Visualize interaction effects in regression models

Knowing how to visualize a regression model is a valuable skill. A good visualization can help you to interpret a model and understand how its predictions depend on explanatory factors in the model. Visualization is especially important in understanding interactions between factors. Recently I read about work by Jacob A.

Read More

Analytics | Data Visualization

Gregor Herrmann

Gregor HerrmannMay 29, 2019 0

So klappt’s mit der Migration von Business Intelligence & Co.

Business Intelligence (BI) begleitet uns schon seit geraumer Zeit – und zwar in ganz unterschiedlichen Ausprägungen. Und das Thema wird immer wichtiger und verändert sich im gleichen Maße, wie Unternehmen den Wert datengetriebener Entscheidungen erkennen. Damals und heute BI war in „jungen Jahren“ geprägt von teuren, komplexen Systemen, die sich

Read More

Data Visualization | Programming Tips

Robert AllisonMay 29, 2019 0

Converting from Gplot to SGplot - scatter plots

You've probably heard of the famous Rosetta Stone. It had the same decree written on it in both ancient Egyptian and Greek, and was an essential key to help modern historians decipher and translate the ancient Egyptian hieroglyphs. To help the 'old timers' (like me) shift from using SAS/Graph to

Read More

Analytics | Data Visualization

Patricia NeriMay 22, 2019 0

Analysis of Movie Reviews using Visual Text Analytics

This blog shows how the automatically generated concepts and categories in Visual Text Analytics (VTA) can be refined using LITI and Boolean rules. I will use a data set that contains information on 1527 randomly selected movies: their titles, reviews, MPAA Ratings, Main Genre classifications and Viewer Ratings.

Read More

Analytics | Data Visualization

Rick WicklinMay 22, 2019 0

Gershgorin discs and the location of eigenvalues

The eigenvalues of a matrix are not easy to compute. It is remarkable, therefore, that with relatively simple mental arithmetic, you can obtain bounds for the eigenvalues of a matrix of any size. The bounds are provided by using a marvelous mathematical result known as Gershgorin's Disc Theorem. For certain

Read More

Data Visualization | Programming Tips

Robert AllisonMay 21, 2019 0

Analyzing marathon data with a graph

Marathons seem to be popular these days, therefore I decided to dive into some data and find a way to apply analytics. You might find this interesting if you're a fan of marathons - or if you like seeing the details behind cool graphing techniques! Before we get started, here's

Read More

Sports & Entertainment

Data Visualization | Learn SAS

Scott HicksMay 21, 2019 0

Essentials of Map Coordinate Systems and Projections in Visual Analytics

If you spend any time working with maps and spatial data, having a fundamental understanding of coordinate systems and map projections becomes necessary. It’s the foundation of how spatial data and maps work. These areas invariably evoke trepidation and some angst, even in the most seasoned map professional. And rightfully

Read More

Data Visualization | Programming Tips

Robert AllisonMay 16, 2019 0

NC tornado animation (1950-2018)

We recently had some severe storms come through North Carolina, which even spawned a tornado in Wake county (the county where I live and work). This got me wondering when and where we've had tornadoes in NC in the past ... and, of course, I had to create a map!

Read More

Advanced Analytics | Analytics | Customer Intelligence | Data Visualization | Machine Learning

Suneel GroverMay 16, 2019 0

SAS Customer Intelligence 360: Factorization machines, visual analytics, and personalized marketing [Part 2]

Competition in customer experience management has never been as challenging as it is now. Customers spend more money in aggregate, but less per brand. The average size of a single purchase has decreased, partly because competitive offers are just one click away. Predicting offer relevance to potential (and existing) customers plays a

Read More

Data Visualization | Learn SAS | Programming Tips

PROC SGMAP SCATTER of Movie Locations

Kelly MillsMay 14, 2019 0

Geocoding US Street Addresses and Plotting Them with PROC SGMAP

I met many SAS programmers at the 2019 SAS Global Forum who geocode addresses using ArcGIS. Did you know that street address locations and other things can be found using the SAS GEOCODE procedure? PROC GEOCODE gives you coordinates for address, ZIP codes, ZIP+4 codes and cities. You can even

Read More

Data Visualization | Programming Tips

Robert AllisonMay 9, 2019 0

US natural gas graph has 'flipped'!

You might have seen in the news that US exports of natural gas to Europe are up 300%. And we recently crossed the threshold where we export more natural gas than we import. This seems like a momentous occasion, and worthy of a graph! But first, let me make sure

Read More

Energy & Utilities

Analytics | Data Visualization | Programming Tips

Lavanya MandavilliMay 6, 2019 0

Five key security features in the SAS Visual Analytics app

App security is at the top of mind for just about everybody – users, IT folks, business executives. Rightfully so. Mobile apps and the devices on which they reside tend to travel around, without any physical boundaries that encompass the traditional desktop computers. In chatting with folks who are evaluating

Read More

Data Visualization

Gregor Herrmann

Gregor HerrmannApril 30, 2019 0

Navigating migration: Getting the move right for business intelligence

Business intelligence (BI) has been around for a long time in one form or another. It is, however, both becoming more important and changing as organisations see the benefits of data-driven decision making. Looking back and forwards In the early days of business intelligence, systems were expensive, complex and often

Read More

Data Visualization | Programming Tips

Robert AllisonApril 30, 2019 0

Mortgage rate graph animation

I always recommend looking at data in several different ways to get a more complete mental picture. And when the data is changing over time, one great way to view it is using an animation. Follow along for some tips & tricks to animate your own data over time. I'll

Read More

Data Visualization | Programming Tips

Robert AllisonApril 25, 2019 0

Polar graph remix - using sgplot (no gtl/sgrender!)

A few years ago Sanjay showed how to create a polar graph by creating a gtl template, and then plotting it using Proc SGRender. These days, Proc SGPlot has all the functionality you need to create this graph, therefore I've rewritten the example to just use SGPlot. And while I

Read More

Data Visualization | Programming Tips

Robert AllisonApril 22, 2019 0

Mortgage rates - overlaying multiple years in the same graph

While we're on the topic of mortgage rates, let's explore another technique for plotting and comparing the rate data over several years. Last time, we plotted each year's data in a separate graph, and paneled them across the page. This time, let's overlay multiple years together in the same graph.

Read More

Banking | Government

Data Visualization | Programming Tips

Robert AllisonApril 17, 2019 0

Diving deeper into a mortgage rate graph

Did you recently lock in a mortgage rate of 3.5-5%, or perhaps even lower? How do today's rates compare to rates in the past? Let's dig a little deeper into this topic, with some graphs! But before we get started, here's a picture to get you into the mood for

Read More

Banking | Government

Data Visualization | Programming Tips

Robert AllisonApril 15, 2019 0

Does low unemployment mean there are job openings?

In the past, I created some graphs about our record low unemployment rate (US unemployment, and state-level unemployment), but does low unemployment also mean there are jobs available? Let's have a look at the data!... Existing Graphs I knew I couldn't be the only one interested in this kind of

Read More

Government | Manufacturing

Analytics | Data Visualization | Programming Tips | SAS Administrators | SAS Events

Frederik Vandenberghe

Frederik VandenbergheApril 12, 2019 0

Script for a SAS Viya installation on Azure in just one click

At the end of my SAS Users blog post explaining how to install SAS Viya on the Azure Cloud for a SAS Hackathon in the Nordics, I promised to provide some technical background. I ended up with only one manual step by launching a shell script from a Linux machine

Read More

Data Visualization | Programming Tips

Robert AllisonApril 11, 2019 0

What to do in Dallas, during SAS Global Forum!

The past few years, I've created maps showing things you might visit and do during the big SAS Global Forum (SASGF) conference. This year the conference is in Dallas, and ... you guessed it ... I've created a Dallas map! If you're familiar with my previous maps, you know that

Read More

Sports & Entertainment

Analytics | Data Management | Data Visualization

Georgia MarianiApril 11, 2019 0

The impact of data governance and analytics: An interview with the U. of Idaho

What's the impact of using data governance and analytics for the business side of education? It's an interesting question, and during a video interview, Dale Pietrzak, Ed.D., Director of Institutional Effectiveness and Accreditation (IEA) at the University of Idaho shared details on the results they're realizing from using SAS for data

Read More

Advanced Analytics | Analytics | Data Visualization | Machine Learning

Melanie CareyApril 8, 2019 0

Love at first sight: authentic or absurd?

Have you ever wondered if love at first sight really exists? And if it exists, what qualities are people drawn too? Watch any romantic comedy and you’ll see this phenomenon play out on the big screen. Which begs the question, “If it can happen to them why not me?” Let’s

Read More

Previous 1 2 3 4 5 6 … 52 Next