Feature Selection for Very Short-Term Heavy Rainfall Prediction Using Evolutionary Computation

Table 6

Contingency table.

Forecast	Event
	Event observed
	Yes	No	Marginal total
Yes	Hit (𝑎)	False alarm (𝑏)	Fc Yes (𝑎+𝑏)
No	Miss (𝑐)	Correct nonevent (𝑑)	Fc No (𝑐+𝑑)
Marginal total	Obs Yes (𝑎+𝑐)	Obs No (𝑏+𝑑)	Sum total (𝑎+𝑏+𝑐+𝑑=𝑛)