Infovis 1: Exercise

Published

March 19, 2024

This exercise involves recreating the graphics from the Kovic (2014) blog post. Since the original blog post is no longer available, we’ve hosted a copy on the following website:

https://researchmethods-zhaw.github.io/blog.tagesanzeiger.ch/

Please review the graphics in the blog post. The default settings for ggplot2 were used in the blog post, which makes recreating the graphics easier. The links in the text refer to the original graphics, while the embedded plots have been recreated.

First, let’s import the dataset tagi_data_kanton.csv.

library("dplyr")
library("ggplot2")
library("readr")

canton <- read_delim("datasets/infovis/tagi_data_kantone.csv", ",")

Task 1

Your first task is to recreate the following plot from Kovic (2014) using ggplot and the tagi_data_kanton.csv dataset:

Here’s are some tips to get you started:

  • Create a ggplot object with ggplot(canton, aes(auslanderanteil, ja_anteil)), then add a point layer with geom_point().
  • Use coord_fixed() to set a fixed ratio (1:1) between the axes.
  • Optionally, you can:
    • Set the axis limits with scale_x_continuous (or scale_y_continuous).
    • Manually set the breaks (0.0, 0.1 0.3 etc) within scale_x_continuous (or scale_y_continuous)
    • Use labs() to label the axes.

Task 2

Next, replicate the following plot from Kovic (2014) using ggplot:

Here’s a tip:

  • Use geom_smooth.

Task 3

Now, let’s import the municipal data tagi_data_gemeinden.csv.

Replicate the following plot from Kovic (2014) using ggplot and the tagi_data_gemeinden.csv dataset:

Here are some tips:

  • Use geom_point().
  • Use labs().
  • Use coord_fixed().

Task 4

Replicate the following plot from Kovic (2014) using ggplot and the tagi_data_gemeinden.csv dataset:

Here’s a tip:

  • Use geom_smooth.

Task 5

Replicate the following plot from Kovic (2014) using ggplot and the tagi_data_gemeinden.csv dataset:

Here’s a tip:

  • Use facet_wrap to display a separate plot for each canton.

Task 6

Replicate the following plot from Kovic (2014) using ggplot and the tagi_data_gemeinden.csv dataset:

Here’s a tip:

  • Use geom_smooth.

Task 7

Replicate the following plot from Kovic (2014) using ggplot and the tagi_data_gemeinden.csv dataset:

Here’s a tip:

  • Use facet_wrap

Task 8

Replicate the following plot from Kovic (2014) using ggplot and the tagi_data_gemeinden.csv dataset:

Here’s a tip:

  • Use geom_smooth.