The default length of numeric variables in SAS data sets is 8 bytes. (You can control the length of SAS numeric variables with the LENGTH statement in the DATA step.) In the SAS System under Windows, ...
Variables often look like $var, but they also look like $1, $*, $? and $$. Let's take a look at what all these $ values can tell you. A lot of important values are ...
This appendix provides an example on how to apply the k-prototypes clustering algorithm in R, which is an open-source programming language that is mainly used for data processing and statistical ...
Dr. James McCaffrey of Microsoft Research presents a full-code, step-by-step tutorial on a "very tricky" machine learning technique. Data clustering is the process of grouping data items together so ...
In this exercise we have an example of R Markdown - a way to combine narrative writing with code and output from analyses to create reproducible reports. The goal today is to learn a bit about how the ...
Statistical Analysis System, also known as SAS, as the name suggests, primarily serves as a software tool for statistical analysis. SAS is also a programming software used for data manipulation, ...
A behind-the-scenes blog about research methods at Pew Research Center. For our latest findings, visit pewresearch.org. Many of Pew Research Center’s survey analyses show relationships between two ...
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