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Mean absolute error

Usage

mean_absolute_error(
  y,
  y_hat,
  return_agg = c("mean", "sum", "vector"),
  na.rm = FALSE
)

Arguments

y

Vector of observations or ground-truths.

y_hat

Vector of predictions.

return_agg

Whether to return the "mean" (default), "sum", or "vector" of errors.

na.rm

A logical value indicating whether NA values should be stripped before the computation proceeds.

Value

The mean (or total or vectorial) absolute error between y and y_hat.

Examples

mean_absolute_error(c(2.3, 4.2, 1.8), c(2.2, 4.6, 1.7))
#> [1] 0.2