Exercises
1) Draw three circles like these
2) Fill them with red color.
3) Do the above steps 1, 2 using d3.js
4) Now, select only first circle, move it by 20px and change color to blue.
5) Create a new array with values [5, 10, 15], use this as radii for circles.
6) Create Barchart from normalized.csv and actual.csv
6 b) on click change dimension to plot
7) Scatterplot from normalized.csv n,x,y,r,f and actual.csv
8) Transitions