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Mean reciprocal rank at k

Source: R/gru4r_native.R
morie_gru4r_mrr.Rd

1 / position of the target within the top k, or 0 if absent.

Usage

morie_gru4r_mrr(ranked, target, kk = 20)

Arguments

ranked

Ordered integer vector of recommended item ids.

target

Target item id.

kk

Cutoff.

Value

Scalar.

Examples

morie_gru4r_mrr(c(5L, 2L, 9L, 1L), target = 9L, kk = 3)   # 1/3
#> [1] 0.3333333