(from:http://en.wikipedia.org/wiki/Mahalanobis_distance) Mahalanobis distance In statistics, Mahalanobis distance is a distance measure introduced by P. C. Mahalanobis in 1936.It is based on correlations between variables by which different patterns
(from:http://en.wikipedia.org/wiki/Mahalanobis_distance) Mahalanobis distance In statistics, Mahalanobis distance is a distance measure introduced by P. C. Mahalanobis in 1936.It is based on correlations between variables by which different patterns
马氏距离有多重定义: 1)可以表示 某一个样本与DataSet的距离. 2)可以表示两个DataSet之间的距离. 1) The Mahalanobis distance of an observation {\displaystyle {\vec {x}}=(x_{1},x_{2},x_{3},\dots ,x_{N})^{T}} from a set of observations with mean {\displaystyle {\vec {\mu }}=(\mu _{1},\mu _{
说明 Ctrl – k: 先按住 Ctrl 键,然后再按 k 键: Alt – k: 先按住 Alt 键,然后再按 k 键: M – k:先单击 Esc 键,然后再按 k 键. 移动光标 Ctrl – a :移到行首 Ctrl – e :移到行尾 Ctrl – b :往回(左)移动一个字符 Ctrl – f :往后(右)移动一个字符 Alt – b :往回(左)移动一个单词 Alt – f :往后(右)移动一个单词 Ctrl – xx :在命令行尾和光标之间移动 M-b :往回(左)移动一个单词
Linux 命令行快捷键 7条回复 涉及在linux命令行下进行快速移动光标.命令编辑.编辑后执行历史命令.Bang(!)命令.控制命令等.让basher更有效率. 说明 Ctrl – k: 先按住 Ctrl 键,然后再按 k 键: CAlt – k: 先按住 Alt 键,然后再按 k 键: M – k:先单击 Esc 键,然后再按 k 键. 移动光标 Ctrl – a :移到行首 Ctrl – e :移到行尾 Ctrl – b :往回(左)移动一个字符 Ctrl – f :往后(右)移动一个字