然而实验发现第一主成分未必是算法初始化的最佳选择。
They are all initialized by the first principal component for the close relation between principal curves and the principal components.
用南方涛动指数(SOI)的第一主成分表示年涛动强度。
The first principal component of the Southern Oscillation Index (SOI) is used as the intensity of annual SO.
结果中国人群HLA -A位点的第一主成分自北向南形成了明显的遗传地理梯度变异。
Results the first principle component of the HLA -a loci in the Chinese population has obvious geographic genetic structure from north to south.
第一主成分综合反映了区内土壤盐渍化程度，第二和第三主成分联合反映了土壤的碱性特征。
The first principal component can denote the degree of soil salinity, and the second and third principal component can denote the degree of soil alkalinity.
根据第一主成分和第二主成分的特征向量计算各时间段的第一主成分和第二主成分的指标值。
Then utilizing principal component analysis, the author analyzed the data of each period and concluded that the first and second principal component's accumulative proportion is more than 85 percent.
与传统方法相比，本文方法更为合理地保留了原始指标矩阵中的信息，且第一主成分的贡献率有了显著的提高。
Comparing with the traditional methods, it could hold more information of the original index matrix and had much higher contributing rate of the first principal component.
近百年来旱涝等级资料的第一主成分有显著的3年、8年、11年周期，第二主成分有14年、29年的周期。
The first main component of recent100year through drought and excessive rain ranking data has an obvious3| 8| 11| year cyc the second component14| 29| year cyc.
它主要对所选择的40只绩优股，进行横向的比较，并根据第一主成分得分进行排序，给广大的投资者提供参考。
We mainly carry out more lateral comparison for the 40 blue chips selected, and they have a rank according to the scores of the first principal component to offer reference to masses of investor.
结果表明：祁连山附近气温在空间上具有很好的一致性，年平均气温的第一主成分的方差贡献可占总方差的75%左右。
The results show temperature spatial variations have high consistency, the variance ratio contribution of the first principal component is about 75%.
对GGE 作单值分解，并以第一和第二主成分近似之。
The GGE data is then subjected to singular value decomposition and is approximated by the first two principal components.
电子舌测定结合主成分分析法(pca)的结果显示，在第一和第二主成分的得分图上，电子舌可以区分特征十分相近的不同等级的普洱茶。
The electronic tongue was used in combination with principal component analysis (PCA) for the classification of tea samples from three quality grades.
电子舌测定结合主成分分析法（PCA）的结果显示，在第一和第二主成分的得分图上，电子舌可以区分特征十分相近的不同等级的普洱茶。
Results Analyzing the data with principal component analysis(PCA) by model recognition, the different agents can be distinguished in the scattered plots.
电子舌测定结合主成分分析法（PCA）的结果显示，在第一和第二主成分的得分图上，电子舌可以区分特征十分相近的不同等级的普洱茶。
Results Analyzing the data with principal component analysis(PCA) by model recognition, the different agents can be distinguished in the scattered plots.
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