bias
computes the average amount by which actual
is greater than
predicted
.
bias(actual, predicted)
The ground truth numeric vector.
The predicted numeric vector, where each element in the vector
is a prediction for the corresponding element in actual
.
If a model is unbiased bias(actual, predicted)
should be close to zero.
Bias is calculated by taking the average of (actual
- predicted
).
# NOT RUN {
actual <- c(1.1, 1.9, 3.0, 4.4, 5.0, 5.6)
predicted <- c(0.9, 1.8, 2.5, 4.5, 5.0, 6.2)
bias(actual, predicted)
# }
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