中文说明：多元数据分析的主分量分析投影，包括四元数的各种计算,在matlab环境中自动识别连通区域的大小,鲁棒性好，性能优越，主要是基于mtlab的程序，在matlab R2009b调试通过。
English Description：
Multivariate data analysis principal component projection analysis, including quaternion calculation in Matlab environment automatic identification of size of connected region, good robustness, superior performance, is mainly based on MTLAB procedures in MATLAB r2009b debugging through.