Calculate the accuracy rate.

This function provides the overall accuracy rate for the two vectors. This is the sum of the true positive and true negative values.

sum(True positive) / sum(Condition positive)

sum(True negative) / sum(Condition negative)

Usage

accuracy(observed, predicted)

sensitivity(observed, predicted)

specificity(observed, predicted)

Arguments

observed

vector of observed values.

predicted

vector of predicted values.

Value

the accuracy as a numeric value.