多维排列 (Multidimensional scaling,MDS)是可视化多变量样品(如多个物种丰度、多个基因表达)相似性水平的一种方法。其基于距离矩阵进行一系列的排序分析。经典的MDS ...

This is the fifth of eight voiceless consonant programmes in our series of videos that explore the sounds of English. This is the fifth of seven short vowel programmes in our series of videos that ...

They wanted to be the first country to discover new places and plant their national flag there. Some of the explorers below lived at the same time and we can compare their stories. With all of them, ...