title: ‘Homework 2: graphics practice’
author: ‘Last name, first name’
date: ‘r format(Sys.Date(), "%Y, %B %d")‘

output: distill::distill_article

{r setup, include=FALSE} knitr::opts_chunk$set( echo = TRUE, message = FALSE, error = FALSE, warning = FALSE)

Preliminary

For this homework assignment, we’ll continue exploring data related to
our Citi Bike case study as a way to practice the concepts we’ve been
discussing in class.
In our third discussion, we briefly considered an exploratory
visualization of activity and docking station (im)balance, conducted in
2013 by Columbia University’s Center for Spatial Research. [https://
c4sr.columbia.edu/projects/citibike-rebalancing-study](https://
c4sr.columbia.edu/projects/citibike-rebalancing-study).
As practice in understanding encodings, let’s review and reconstruct one
of the Center’s graphics, titled: “CITI BIKE HOURLY ACTIVITY AND
BALANCE”. You can download and zoom in on a high resolution pdf of the
graphic here: [https://c4sr.columbia.edu/sites/default/files/
Activity_Matrix_Composite.pdf](https://c4sr.columbia.edu/sites/default/
files/Activity_Matrix_Composite.pdf).