homework 6: https://tpemartin.github.io/course-108-1-inclass-datavisualization/dashboard_homework6
homework 5: https://tpemartin.github.io/course-108-1-inclass-datavisualization/dashboard_homework5
homework 4: https://tpemartin.github.io/course-108-1-inclass-datavisualization/dashboard_homework4
homework 3: https://tpemartin.github.io/course-108-1-inclass-datavisualization/dashboard_homework3
homework 2: https://bookdown.org/tpemartin/dashboard/dashboard_homework2_2019_10_15.html
homework 1: https://bookdown.org/tpemartin/flexdashboard2019_10_08/flexdashboard.html