Table 1

Simple 2 by 2 contingency table.

Condition 2

0

1

Condition 1

0

a

b

1

c

d

The categorical variables Condition 1 and Condition 2 each has two levels. The cell values are counts at each combination of two condition variables.

Datta and Zhao BMC Bioinformatics 2009 10:23   doi:10.1186/1471-2105-10-23