Keywords - Function groups - @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Library: xclust
See also: conting recide kmeans agglom

Quantlet: measure
Description: computes coefficients of association between two two partitions which are crossed and build up a contingency table

Usage: m = measure (h)
Input:
h k x p contingency table
Output:
m.r Rand's coefficient
m.rc Rand's coefficient corrected by chance
m.fm coefficient of Fowlkes and Mallow
m.chi Chi-square value

Example:

; load the library xclust

library ("xclust")

; generate x

x = #(1, 1, 1, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 3, 3, 3, 3, 3)

; generate y

y = #(2, 2, 2, 3, 1, 1, 3, 3, 3, 3, 3, 2, 2, 3, 2, 2, 1, 1, 1, 2, 1)

; generate contingency table

h  = conting(x, y) 

; compute measures

measure(h)

Result:

Content of object _tmp.r

[1,]  0.81905 

Content of object _tmp.rc

[1,]   0.5767 

Content of object _tmp.fm

[1,]  0.70778 

Content of object _tmp.chi

[1,]   26.906 


Library: xclust
See also: conting recide kmeans agglom

Keywords - Function groups - @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Author: Hans-Joachim Mucha, 941111 Sigbert Klinke, 970902
(C) MD*TECH Method and Data Technologies, 21.9.2000