In case you haven’t read about SAS Visual Statistics, let’s start with a quick overview. First, it’s an add-on to SAS Visual Analytics. Second, it’s a web-based solution with an interactive, drag-and-drop interface that helps you rapidly build descriptive and predictive models. Lastly, SAS Visual Analytics and SAS Visual Statistics
前回の記事では、学生であれば無料で利用可能なオンライン学習コース「Skill Builder for Students」のProgrammingコースについての概要を紹介しました。今回は引き続きまして、Visual Analytics and Visual Statisticsコースについて紹介していきます。 データアナリティクスへの興味・関心は近年急激に増加しています。ただ特に学習を始めた学生では、データアナリティクスと聞くと、どうしても複雑なモデルを組むことや機械学習を実施することだけに意識が向いている印象を受けます。しかしデータアナリティクスの本質はそこではありません。根幹にあるのは意思決定や業績の改善にどれほど貢献できるかです。データの可視化、見える化は学生ですとしばしば軽視されがちな部分ではありますが、意思決定や現状の把握においては非常に有用な有用な方法の一つです。 今回紹介するコースではSAS Viyaプラットフォーム上でSAS Visual AnalyticsとSAS Visual Statisticsを使用し、様々な可視化方法、予測モデルについて学習を行います。これらを学習することによってデータに潜む傾向やパターンを把握し、そしていかにその後のリスク管理や傾向の予測などへとつなげていくかといった実践的なデータアナリティクスを学ぶことが可能です。またSAS ViyaはSASによるプログラミング以外にもRやPythonといった他のプログラミング言語をサポートしているため、SASのコーディングができない方であっても不自由なく利用することが可能となっています。 Visual Analytics and Visual Statisticsコースへのアクセスは以下の手順です。 Skill Builder for Studentsへログイン 「Learn SAS」というタブをクリック 画面中央の「Start Learning」をクリック 「Visual Analytics and Visual Statistics」をクリック 展開される各種e-learningコースをクリック 画面下部にある「enroll」をクリック Visual Analytics and Visual Statisticsコースの概要 本コースは SAS Visual Analytics 1 for SAS
This blog is not about the original movie The More the Merrier (1943) or its remake, Walk, Don’t Run (1966), which I’ve actually seen a couple of times. It’s actually about the wide variety of descriptive statistics available in SAS Visual Analytics—and when you want to examine the characteristics of
Getting Started with Job Scheduling in SAS Viya If you have ever had to manually trigger Viya jobs, you know the drill: it is tedious, and one forgotten click can throw everything off. That is where SAS Viya job scheduling comes in. It lets you automate your programs, data loads,
SAS has several procedures that can fit a probability distribution to data, plot a histogram, and overlay one or more density estimates: PROC UNIVARIATE in Base SAS enables you to overlay parametric density curves from about 20 common continuous probability distributions, such as normal, lognormal, and gamma. It also enables
When I encounter a new function, I usually graph it to gain intuition about how the function transforms its inputs. Recently, I needed to use the Rayleigh quotient function, which is connected to the estimation of eigenvalues and eigenvectors for symmetric matrices. It has been several years since I last
SAS Viya now includes built-in bias mitigation in its machine learning procedures to help users develop ethical and trustworthy AI models by automatically detecting and reducing bias during training.
A practical guide to SAS Procedures in Viya 4, introducing their purpose, showcasing real-world examples, and highlighting a new downloadable cheat sheet that simplifies navigation across SAS’s advanced analytics portfolio.
Health care fraud, waste, and abuse (FWA) cost the industry billions each year—but what if we could outsmart it? Enter SAS Payment Integrity for Health Care: Detect and Prevent, a groundbreaking solution that is redefining how we can tackle FWA. As the first to offer models-as-a-service in a Commercial Off-The-Shelf
A previous article discusses the Gini-Simpson diversity index and how to compute it in SAS. Suppose you have a sample that contains R classes. (Classes are also called groups or categories.) Intuitively, the sample exhibits "high diversity" if the class sizes are approximately equal. The sample shows "low diversity" if
A recent article describes the main features of simulation by using the Synthetic Minority Over-sampling Technique (SMOTE). SMOTE was created to oversample from a set of rare events prior to running a machine learning classification algorithm. However, at its heart, the SMOTE algorithm (Chawla et al., 2002) provides a way
We’re constantly innovating to help organizations unlock the full potential of their data and AI capabilities. That’s why we have SAS® Viya® Copilot, a conversational assistant available in Viya that utilizes services from Microsoft Azure AI Foundry. With Viya Copilot, we’re transforming the way users interact with the platform, making it
Learn how to incorporate operational variables, or covariates, into predicting asset survival probabilities.
SAS/STAT offers a principled treatment of missing data in a frequentist paradigm. SAS' Michael Senter reveals how with a few code tweaks, you can seamlessly transition to a Bayesian analysis.
SAS' Jennifer Hargrove introduces the SAS Medication Adherence Risk model, a way to identify patients at high risk of being non-adherent to their medication therapy so that interventions can be provided to help patients remain adherent.
When the SAS Global Forum 2020 conference was cancelled by the global COVID-19 pandemic, I felt sorry for the customers and colleagues who had spent months preparing their presentations. One presentation I especially wanted to attend was by Bucky Ransdell and Randy Tobias: "Introducing PROC SIMSYSTEM for Systematic Nonnormal Simulation".
In SAS, range attribute maps enable you to specify the range of values that determine the colors used for graphical elements. There are various examples that use the GTL to define a range attribute map, but fewer examples that show how to use a range attribute map with PROC SGPLOT.
A common way to visualize the sample correlations between many numeric variables is to display a heat map that shows the Pearson correlation for each pair of variables, as shown in the image to the right. The correlation is a number in the range [-1, 1], where -1 indicated perfect
Learn how an intern integrated SAS Viya® and open-source code (Python) into a Machine Learning project to combine their strengths within the context of predictive modeling, and to show off the variety of ways this integration can be accomplished.
The new SAS Certified Specialist: Statistics for Machine Learning credential is designed to help you showcase your expertise and commitment to staying ahead in the industry.
The moment-ratio diagram is a tool that is useful when choosing a distribution that models a sample of univariate data. As I show in my book (Simulating Data with SAS, Wicklin, 2013), you first plot the skewness and kurtosis of the sample on the moment-ratio diagram to see what common
Customers are buzzing with stories of how SAS Viya has transformed how people work with AI, data and analytics. But where are these stories coming from? Users across various industries have shared their experiences, highlighting the impact SAS Viya has had on their productivity, decision making and overall work experience.
A recent article describes how to estimate coefficients in a simple linear regression model by using maximum likelihood estimation (MLE). One of the nice properties of an MLE formulation is that you can compare a large model with a nested submodel in a natural way. For example, if you can
Transitioning from SAS9 to SAS Viya can be uncertain for SAS programmers. Whether your organization is making the move and you’re curious about your current SAS analytical workflows, or you're contemplating moving to SAS Viya and concerned about its impact on your SAS expertise and programs. The hesitation is understandable.
Learn how to fit a logistic regression and use your model to score new data. In part 4 of this series, we created and saved our modeling data set with all our updates from imputing missing values and assigning rows to training and validation data. Now we will use this
Plot rates, not counts. This maxim is often stated by data visualization experts, but often ignored by practitioners. You might also hear the related phrases "plot proportions" or "plot percentages," which mean the same thing but expresses the idea alliteratively. An example in a previous article about avoiding alphabetical ordering
More than spreadsheets and formulas, data analytics combines technology, creativity and strategic thinking to help diverse industries make innovative discoveries and leave an impact where it matters most. Even historically, non-technical industries like agriculture, for instance, are tapping into data management and visualization to predict and reduce their carbon footprint
A SAS programmer wanted to use PROC SGPLOT in SAS to visualize a regression model. The programmer wanted to visualize confidence limits for the predicted mean at certain values of the explanatory variable. This article shows two options for adding confidence limits to a scatter plot. You can use a
From within PowerPoint, you can use the SAS menu available through SAS for Microsoft 365, to access SAS Visual Analytics reports' graphical visuals.
A previous article explains the Spearman rank correlation, which is a robust cousin to the more familiar Pearson correlation. I've also discussed why you might want to use rank correlation, and how to interpret the strength of a rank correlation. This article gives a short example that helps you to
