Regarding the obvious anisotropy and inhomogeneity characteristics for the fractured-vuggy carbonate in Tarim Basin and based on the multiple stepwise discrimination method and kernel principal component analysis method,the seismic attributes optimization is conducted by integration of the two methods.

Bayes discrimination function was found out by stepwise discrimination getting the preparative and very marked discrimination variables.

Methods Stepwise discriminant analysis was used to establish a mathematical model with the incidences of bacillary dysentery,monthly average air temperature,monthly precipitation,and monthly sunshine hours of 14 major cities in Hunan during the period of 1987～2006.

Research the cells-apparatus morphologigal parameters of simple breast carcinoma by stepwise discriminant analysis in the middle and late stages;

In view of the said condition, the stepwise discriminant analysis is designed to establish the oil and water discriminant function for the sand and clay profiles to facilitate the ana.

Aiming at the variety and the complexity of the cause for low resistivity reservoir fuzzy cluster analysis technique and stepwise discriminant analysis methods have been used for 42 wells to identify the conductive oil gas bed in Hainan structure in Liaohe oil field.