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Visualizing Model Inference and Robustness
Supplementary material: This is a 9-hour short course version of the full Data Visualization course. (The lectures for the full term course are below.) Students taking the short course may also need this brief introduction to R for data visualization. Materials for the R review session: R code and data for the GDP example. R code and data from the fertility example. Detailed instructions for downloading, installing, and learning my recommended software for quantitative social science are here. Materials for Session 3: R code and data for the voting example, and sample output for expected values, first differences, relative risks, and a combination plot. R code and data for the inequality scatterplot, and sample output. Materials for Session 5: R code for the crime example.
Principles for the Visual Display of Scientific Information, Part I
Principles for the Visual Display of Scientific Information, Part II
Cognitive Issues in Visualization, Part I: Everything but color
Cognitive Issues in Visualization, Part II: Color
Graphical Programming, part 1: Using R graphics functions
Supplementary material: In class, we will discuss the use of heatmaps to explore complex multivariate data. Supplemental color and printable slides use heatmaps to explore dyadic relationships in trade data. Interested students can find detailed instructions for downloading, installing, and learning my recommended software for quantitative social science here. Focus on steps 1.1 and 1.3 for now, and then, optionally, step 1.2.
Graphical Programming, part 2: R graphics from the ground up
Supplementary material: We will examine two R scripts: a script using the base R graphics to show confidence intervals around a regression line, and another script using grid R graphics to accomplish the same task. Both scripts require this dataset.
Exploratory Data Analysis: The border between exploration and modeling
Visualizing Inference: Introduction to the tile package
Supplementary material: The tile package and a variety of demo scripts and examples can be found under the Software tab at left.
Problem Set 1
Due in class January 22
Supplementary material: You will need these data.
Problem Set 2
Due in class February 14
Problem Set 3
Due in class February 28
Individual memo due before group meets; Group memo due by February 25
Students will join a small group to discuss a visual display problem of common interest; creation and organization of these groups to be coordinated through the web. Students will write a 1-2 page memo before the first group meeting, and each group will write a 5+ page essay for the class on what they have learned, to be distributed by February 25. Groups will answer questions from the class on February 28. See the syllabus for further details.
Presented in class during the final two weeks
On an assigned day during the last two weeks of the course, each student will present a poster applying the tools learned in class to their own research. Alternatively, students can take an article published in their field and show how better visuals would either more clearly convey the findings or cast doubt on them. The final presentation may address problems raised in the breakout session, but it is usually more fruitful for students to tackle a new problem.
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