accuracy: Calculate the Accuracy for predictions

In ksboxer/CDIPATools: CDI Predictive Analytics Tools

Description

This function takes the predictions of a model, (can be either binary 0 or 1, or continous numeric [0,1]) and calculates the accuracy based on the predictions. Given that predictions need to binary for the accuracy calculates you need to pass in a threshold to but the predictions off. If the predictions are already binary, then pass in .5 Note: if there are imbalanced positives and negatives this metric might not be that useful

Usage

accuracy(predictions, outcomes, threshold)

Arguments

predictions	list of numerics, predicted values
outcomes	list of numerics, actual values/outcomes
threshold	numeric, value between 0 - 1 to cut predictions that are continous within binary 0s and 1s

Value

numeric, returns accuracy value

Examples

accuracy(predictions = FakePredictionResults$est.risk.score,
outcomes = FakePredictionResults$true.risk.bin, threshold = .5)

ksboxer/CDIPATools documentation built on June 5, 2019, 8:29 a.m.