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Table 2 Number of agreements or disagreements between two individuals based on a binary variable consisting of presence or absence of a particular attribute.

From: Cluster analysis for identifying sub-groups and selecting potential discriminatory variables in human encephalitis

 

Individual i

 
 

Present (+)

Absent (-)

Totals

Individual j

Present (+)

Absent (-)

a

c

b

d

a+b

c+d

 

Totals

a+c

b+d

Ν