经验正交函数，EOF程序，主成分分析程序，适合做向量场的正交分解。,EOF, EOF procedures, principal component analysis procedure, suitable for vector field orthogonal decomposition.

经验正交函数，非常适合气象人士使用，针对站点数据，此程序为对站点降水资料做EOF-Empirical orthogonal functions, very suitable for meteorological use, site data, this program is on the site precipitation data do EOF

EOF（经验正交函数分解）可以进行时空分离，同时也可以分析周期规律-EOF (empirical orthogonal function decomposition) can be temporal separation, but also can analyze cycle regularity