2x2 Contingency Table

A 2x2 Contingency Table is a contingency table that is a 2x2 table.

• • …
• Example(s):
  • [math]\displaystyle{ \begin{array}{c|cc|c} & pattern_2 & \neg pattern_2 & \\ \hline pattern_1 & n_{11} & n_{12} & n_{1p} \\ \neg pattern_1 & n_{21} & n_{22} & n_{2p} \\ \hline & n_{p1} & n_{p2} &n_{pp} \end{array} }[/math].
  • …
• Counter-Example(s):
  • a 3x3 Contingency Table.
• See: PMI Measure, Confusion Matrix.

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