Data description for IMDB ratings test

* Data are crawled from IMDB
* Two biggest genres (Drama, Action) are selected
* 10000 movie ratings are collected from each genre
* Raw data are saved as “distribution_data_action.csv” and “distribution_data_drama.csv”
* We used Excel to calculate the base HDB as VcbBase
* The program “imdb_process.R” can be used to draw histogram graph and get “Rplot.png”
