例句與造句

1. The distribution and structure of the allelic polymorphism data are analyzed and it is pointed out that the distribution of allelic polymorphism data reveals the characteristic of closed data ( also named as compositional data or data of constant sum ) it is interpreted that the correlation structure of the allelic polymorphism data contains null correlations introduced by " closure " and the statistical distribution of the data is not normal because of its constant row sum , which resulted in great difficulties in analyzing the data with traditional multiple linear statistical methods such as principal component analysis , factor analysis , cluster analysis and canonical correlation analysis
   摘要長(zhǎng)期以來(lái)，對(duì)于多維基因多態(tài)性數(shù)據(jù)的多元統(tǒng)計(jì)分析，如計(jì)算遺傳距離時(shí)所用的聚類分析、分析群體遺傳結(jié)構(gòu)時(shí)所用的主成分分析、因子分析和典型相關(guān)分析等，一直應(yīng)用為無(wú)約束條件數(shù)據(jù)而設(shè)計(jì)的經(jīng)典多元線性分析方法，并沒(méi)有注意基因多態(tài)性數(shù)據(jù)的“閉合效應(yīng)”所帶來(lái)的問(wèn)題。
2. It's difficult to find row sum in a sentence. 用row sum造句挺難的