Functions can be used in fuzzy match

July 9, 2020
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SOUNDEX (Sound Alike)Ignore case, embedded blanks and punctuations; works best with English-sounding names;Example:WHERE varx = * "Michael";SPEDIS (Spelling Distance)Translating a keyword into a query containing the smallest value distance;Example:Sped...
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A general method for parallel computation in SAS Viya

July 8, 2020
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A general method for parallel computation in SAS Viya

The iml action in SAS Viya (introduced in Viya 3.5) provides a set of general programming tools that you can use to implement a custom parallel algorithm. This makes the iml action different than other Viya actions, which use distributed computations to solve specific...
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Getting Started with Python Integration to SAS® Viya® – Part 3 – Loading a CAS Action Set

July 7, 2020
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Getting Started with Python Integration to SAS® Viya® – Part 3 – Loading a CAS Action Set

Are you looking for a specific CAS action to use in your project? Maybe you need to create a linear or logistic regression and can't seem to find the CAS action? In this post in the Getting Started with Python Integration to SAS® Viya®...
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Pool testing: The math behind combining medical tests

July 6, 2020
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Pool testing: The math behind combining medical tests

Testing people for coronavirus is a public health measure that reduces the spread of coronavirus. Dr. Anthony Fauci, a US infectious disease expert, recently mentioned the concept of "pool testing." The verb "to pool" means "to combine from different sources." In a USA Today...
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Pooled, within-group, and between-group covariance matrices

July 1, 2020
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Pooled, within-group, and between-group covariance matrices

A previous article discusses the pooled variance for two or groups of univariate data. The pooled variance is often used during a t test of two independent samples. For multivariate data, the analogous concept is the pooled covariance matrix, which is an average of...
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How to improve recommendation engines with real-time context and business rules

June 29, 2020
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How to improve recommendation engines with real-time context and business rules

Nowadays, recommendation engines can be found just about everywhere from news websites to e-commerce sites to online streaming services. However, customers frequently encounter recommendations that are inappropriate or repetitive.

How to improve recommendation engines with real-time context and business rules was published on...
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What is a pooled variance?

June 29, 2020
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What is a pooled variance?

The first time I saw a formula for the pooled variance, I was quite confused. It looked like Frankenstein's monster, assembled from bits and pieces of other quantities and brought to life by a madman. However, the pooled variance does not have to be...
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Multi-way lookup tables

June 24, 2020
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Multi-way lookup tables

A lookup table is a programming technique where one or more values can be used to retrieve another value. For example, many years ago, I had benzene exposure estimates for 10 years (1940 to 1949) for each of five locations in a factory. Given...
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The Kolmogorov D distribution and exact critical values

June 24, 2020
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The Kolmogorov D distribution and exact critical values

If you have ever run a Kolmogorov-Smirnov test for normality, you have encountered the Kolmogorov D statistic. The Kolmogorov D statistic is used to assess whether a random sample was drawn from a specified distribution. Although it is frequently used to test for normality,...
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