Homework for vision course
Take other's heatmap and curve graph as referrence.
level 1 is index.html level 2 is indexlevel2.html
Use preprocess.py and preprocess2.py for preprocessing the data to generate the new csv. Due to trouble in reading from local files, I upload the whole work to the github (https://github.com/Do7and/VisHomework), and use the Internet url to import the csv data.