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In this video we continue 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…
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In Module 13 we cover the implementation of basic statistical methods in R. We begin with a discussion of some functions to compute summary statistics and to characterize univariate distributions. In…
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Frequency distributions (univariate and joint) can be displayed in contingency tables, or cross-tabulations. In this video we show how tapply() can be used to create such tables, but we…
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In this video we introduce the various data structures in R, concentrating on vectors.Vectors are the fundamental unit in R, so it is important to understand how to form and manipulate them. While…
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This video presents an extended example from Mod8Script.R that deals with some fictitious quiz score data. Here we introduce several new functions for computing summary statistics and the t.test()…
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This video illustrates PROC UNIVARIATE for conducting a one sample t test and examining the assumption of normality underlying the t test. It also features the use of the ODS SELECT statement. PROC…
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This video demonstrates some of the basic capabilities for producing descriptive statistics, graphical summaries, and basic inferences on one variable at a time with PROC UNIVARIATE.
This video…
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PROC PRINT is a fairly simple procedure that you will use again and again. Learning its basic usage is easy, but this video also covers some additional topics like printing with BY groups; the SUM…
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This video explains the field of international affairs, including its sub-fields: international relations and comparative politics. It then proceeds to define international relations in greater…
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This video provides and overview of the ideas that will be introduced as conceptual concepts in Chapters 1 and 2 of the course.
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