confusionStatistics function

Compute sensitivity, specificity, positive likelihood ratio, negative likelihood ratio for a single 2x2 table

confusionStatistics(truePos, totalDzPos, trueNeg, totalDzNeg)

Arguments

• truePos: The number of true positive tests.
• totalDzPos: The total number of positives ("sick") in the population.
• trueNeg: The number of true negatives in the population.
• totalDzNeg: The total number of negatives ("well") in the population.

Returns

A one-row matrix containing sensitivity, specificity, posLR, negLR results.

Examples

## Not run:

confusionStatistics( 25, 50, 45, 75 )
## End(Not run)

References

Deeks JJ, Altman DG. BMJ. 2004 July 17; 329(7458): 168-169.