Exploratory Data Analysis

Class Video

Readings

• The syllabus for this class
• ModernDive Chapters 1 and 2
• Study: Charts change hearts and minds better than words do

Questions to reflect on

• 2021 Student Survey contains data from an anonymous online survey of postgraduate students. How would we describe the shape, centre, and spread of the following variables:

  • height, a respondent’s height in cm
  • exercise_hours, number of hours exercising last week
  • online_hours, number of hours spent online last week
  • handedness, an indicator from -1 (exclusively left handed) to 0 (ambidextrous) to +1 (exclusively right handed)
  • haircut_spend, amount of money spent on last haircut, expressed in USD$.

Session Files

• Slides for today’s session are available on Canvas.
• You can download all session files (data, code, etc.) by pulling from course Github repo. Alternatively, please install package usethis. Once you have it, you can download, unzip, and open everything within an RStudio project by typing the following in the RStudio console

install.packages("usethis")
usethis::use_course("https://github.com/kostis-christodoulou/usi_EMBA_analytics/raw/master/session1-lecture1.zip")