Create your own version of Anscombe’s quartet: Dissimilar data that have similar statistics

April 17, 2019
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Create your own version of Anscombe’s quartet: Dissimilar data that have similar statistics

I think every course in exploratory data analysis should begin by studying Anscombe's quartet. Anscombe's quartet is a set of four data sets (N=11) that have nearly identical descriptive statistics but graphical properties. They are a great reminder of why you should graph your data. You can read about Anscombe's

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Using code snippets in SAS® Viya®

April 16, 2019
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Using code snippets in SAS® Viya®

This blog post is based on the Code Snippets tutorial video in the free SAS® Viya® Enablement course from SAS Education. Keep reading to learn more about code snippets or check out the video to follow along with the tutorial in real-time. Has there...
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Efficient evaluation of a quadratic form

April 15, 2019
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Efficient evaluation of a quadratic form

A quadratic form is a second-degree polynomial that does not have any linear or constant terms. For multivariate polynomials, you can quickly evaluate a quadratic form by using the matrix expression x` A x This computation is straightforward in a matrix language such as...
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Script for a SAS Viya installation on Azure in just one click

April 12, 2019
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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...
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Read RSS feeds with SAS using XML or JSON

April 11, 2019
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Read RSS feeds with SAS using XML or JSON

This blog post could be subtitled "To Catch a Thief" or maybe "Go ahead. Steal this blog. I dare you."* That's because I've used this technique several times to catch and report other web sites who lift the blog content from blogs.sas.com and present...
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4 ways to compute an SSCP matrix

April 10, 2019
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4 ways to compute an SSCP matrix

In numerical linear algebra, there are often multiple ways to solve a problem, and each way is useful in various contexts. In fact, one of the challenges in matrix computations is choosing from among different algorithms, which often vary in their use of memory,...
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So, you’ve figured out NLP but what’s NLU?

April 9, 2019
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So, you’ve figured out NLP but what’s NLU?

Natural language understanding (NLU) is a subfield of natural language processing (NLP) that enables machine reading comprehension. While both understand human language, NLU goes beyond the structural understanding of language to interpret intent, resolve context and word ambiguity, and even generate human language on...
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Launching the Developers Community in SAS Communities

April 8, 2019
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As word spreads that SAS integrates with open source technologies, people are beginning to explore how to connect, interact with, and use SAS in new ways. More and more users are examining the possibilities and with this comes questions like: How do I code...
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Use the FLOOR-MOD trick to allocate items to groups

April 8, 2019
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Use the FLOOR-MOD trick to allocate items to groups

Suppose you need to assign 100 patients equally among 3 treatment groups in a clinical study. Obviously, an equal allocation is impossible because the second number does not evenly divide the first, but you can get close by assigning 34 patients to one group...
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