Adam M. Enders

Intro to R Material

• Basics of R code

• Graphics code

• Cleaning and Data Prep code

• 2016 ANES data

• Intro R slides

• Graphics slides

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Data Theory & Measurement

• MORALS Optimal Scaling R code

• MORALS Optimal Scaling data

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Summated Rating Scale

• SRM and Reliability R code

• SRM and Reliability data

• SRM Stata code

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Cumulative Scaling

• ​​Mokken Scale Analysis R code

• Knowledge data

• Suspicion 2014 CCES data

• Ordinal MSA code (for suspicion data)

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SVD & Biplots

• Understanding the SVD

• SVD and Biplot R code

• Political Sophistication data, 2012 ANES

• Vector-based regression in 3D (end of code, must run bivariate first)

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Principal Components Analysis

• PCA Example R code

• More SVD/Biplot/PCA examples R code

• State Economy Indicators data

• PCA and Biplot Stata code

• More PCA Examples R code

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Exploratory Factor Analysis

• Factor Analysis example R code

• Factor Analysis "by hand" R code

• Group Thermometers, 2012 ANES data

• Racial Resentment data

• Legitimacy data

• Legitimacy codebook

• FA w/ categorical variables R code

• PC Factor analysis R code

• Exploratory Factor Analysis Stata code

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Confirmatory Factor Analysis

• Confirmatory Factor Analysis R code

• Confirmatory Factor Analysis Stata code

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Multidimensional Scaling

• Classical MDS and MDS "by hand" R code

• Cities data

• Country Similarities data

• Metric and Nonmetric MDS via smacof R code

• 2004 ANES Thermometer data

• Interpreting MDS Solutions R code

• Degenerate Solutions and Correlations as Input R code

• SCOTUS data

• Metric and Nonmetric MDS Stata code

• Conspiracy Theory MDS R code

• Conspiracy Theory Data

• Conspiracy Theory Data Description

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Correspondence Analysis

• CA "by hand" R code

• CA and MCA R code

• Issue Attitudes, 2012 ANES data

• Vote Choice, 2016 ANES data

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Additional Datasets for Practice or Final Assignment​

• 2018 CCES data

• 2018 CCES description of data

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