bibliometrix (version 3.1.4)

lotka: Lotka's law coefficient estimation

Description

It estimates Lotka's law coefficients for scientific productivity (Lotka A.J., 1926).

Usage

lotka(results)

Arguments

results

is an object of the class 'bibliometrix' for which the analysis of the authors' dominance ranking is desired.

Value

The function lotka returns a list of summary statistics of the Lotka's law estimation of an object of class bibliometrix.

the list contains the following objects:

Beta		Beta coefficient
C		Constant coefficient
R2		Goodness of Fit
fitted		Fitted Values
p.value		Pvalue of two-sample Kolmogorov-Smirnov test between the empirical and the theorical Lotka's Law distribution (with Beta=2)

Details

Reference: Lotka, A. J. (1926). The frequency distribution of scientific productivity. Journal of the Washington academy of sciences, 16(12), 317-323.

See Also

biblioAnalysis function for bibliometric analysis

summary method for class 'bibliometrix'

Examples

# NOT RUN {
data(scientometrics, package = "bibliometrixData")
results <- biblioAnalysis(scientometrics)
L=lotka(results)
L

# }