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In this video we illustrate how to conduct paired, one-sample, and two-sample t tests in R. These tests are implemented in the t.test() function. We illustrate the tests with examples that are…
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We continue to discuss data structures in R, this time focusing on lists. Unlike vectors, matrices and arrays, the elements of a list may be of different modes. This makes them very flexible and…
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In this video we introduce read.table() for reading data from an external file into a data frame in R. We illustrate the use of this function via Example #1 in Mod9Script.R; you should download that…
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This video introduces the SET command within a SAS data step for copying one dataset into another or for combining datasets vertically (vertical concatenation). This video covers essential content…
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There are two variables that SAS automatically creates in the program data vector when processing a data step. One is _N_ and the other is _ERROR_. These are useful to know about when programming in…
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This video provides an introduction to delimited input. Follow along with Example #5 in InputExamps.sas.
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Chapter 1 - To Catch a Dinosaur - Part 2 PowerPoint
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Chapter 1 - To Catch a Dinosaur - Part 1 PowerPoint
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Chapter 15 - A History of Paleontology Through Ideas - Part 2 PowerPoint
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