55. 可视化工具
● Matplotlib: a Python 2D plotting library
● ggplot2: a plotting system for R
● Matlab
● SPSS
● D3.js: JavaScript library
● Protovis: JavaScript tool for web-based visualization
● Processing: a popular language and IDE for graphics and interaction
● Prefuse: Java API for information visualization
● Prefuse Flare: an ActionScript 3 library for data visualization in the Adobe
Flash Player
● The Visualization Toolkit: a library for 3D and scientific visualization