MetricsWeighted: f1_score – R documentation

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f1_score

F1 Score

Calculates weighted F1 score or F measure defined as the harmonic mean of precision and recall, see https://en.wikipedia.org/wiki/Precision_and_recall for some background. The higher, the better.

f1_score(actual, predicted, w = NULL, ...)

`actual`	Observed values (0 or 1).
`predicted`	Predicted values (0 or 1).
`w`	Optional case weights.
`...`	Further arguments passed to `precision` and `recall`.

A numeric vector of length one.

f1_score(c(0, 0, 1, 1), c(0, 0, 1, 1))
f1_score(c(1, 0, 0, 1), c(0, 0, 1, 1))
f1_score(c(1, 0, 0, 1), c(0, 0, 1, 1), w = 1:4)

Weighted Metrics, Scoring Functions and Performance Measures for Machine Learning

v0.5.2

GPL (>= 2)

Authors

Michael Mayer [aut, cre, cph], Christian Lorentzen [ctb, rev]

Initial release

2021-04-16