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In this video we begin our illustration of one-way ANOVA models in R through Example 11 in Mod13Script.R. You should open this script in RStudio and follow along while watching. In this portion of…
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A grouped expression is a collection of R commands or expressions enclosed in curly brackets {}. R regards a grouped expression as a single expression with a single value, although when such an…
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In this video we illustrate how to read data from an Excel format into R with read_excel() from the readxl package. We also illustrate the within() function, which is a convenient tool for modifying…
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In this video we discuss the "Date" class in R, how dates are stored, and how to create objects of class "Date" with the as.Date() function. We also discuss how to read date data…
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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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In this video we implement a one-way ANOVA in PROC GLM, using the same example (Example #8 on Pizza Diameters) as in the previous video. But here we discuss the important difference between the…
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