Metrics {RImpact}

Metrics

Description

Measures scholarly impact using modern citation-based indices.

Usage

Metrics(citation.counts, publishing.age = 0, display = TRUE)

Arguments

citation.counts

Number of times each aritcle has been cited. (vector)

publishing.age

Age of the first article author has published. (scalar)

display

Whether to display metrics (if TRUE, the default) or direct output to a file (if FALSE).

Value

h.index

h index, the largest number h such that at least h articles are cited h times each (Hirsch, 2005).

tapered.h.index

Tapered h index, credit decreases for citations farther from the origin (Anderson, Hankin, & Killworth, 2008).

f.index

f index, largest value f such that the harmonic mean fo rthe f most highly cited articles is at least f (Tol, 2009).

g.index

g index, larfest value g such that th emean citations for the g most highly cited articles is at least g (Egghe, 2006).

hg.index

hg index, geometric mean of h and g (Alonso, Cabrerizo, Herrera-Viedma, & Herrera, 2010).

a.index

a index, mean citations for the papers in Hirsch core (Jin, 2006).

m.index

m index, median citations for papers in Hirsch core (Bornmann, Mutz, Daniel, 2008).

r.index

r index, square root of citations for papers in Hirsch core (Jin, Liang, Rousseau, Egghe, 2007).

weighted.h.index

h index weighted by citation impact (Egghe & Rousseau, 2008).

q2.index

q2 index, geometric mean of h and m indexes (Cabrerizo, Alonso, Herrera-Videma, & Herrera, 2010).

e.index

e index, excess citations for papers in Hirsch core (Zhang, 2009).

max.product

Maximum product index, maximum product of article's rank and citation count (Kosmulski, 2007).

sqrt.max.product

Rescales maximum product index from an area to a distance measure.

h2.index

h2 index, analogous to h index with more stringent criterion (Kosmulski, 2006).

m.quotient

m quotient, controlling h index for publishing age (Hirsch, 2005).

tapered.m.quoteient

Controlling tapered h index for publishing age.

Author(s)

John Ruscio

References

Ruscio et al. (2012)

Examples

# Running the Metrics program with illustrative data from Ruscio et al. (2012)
x <- c(24, 18, 12, 8, 6, 5, 5, 4, 4, 3, 2, 2, 1, 1, 1, 0, 0, 0)
Metrics(x)