lotka function

Lotka's law coefficient estimation

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

lotka(results)

Arguments

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

Returns

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 theoretical Lotka's Law distribution (with Beta=2)
AuthorProd		Authors' Productivity frequency table

Details

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

Examples

data(scientometrics, package = "bibliometrixData")
results <- biblioAnalysis(scientometrics)
L=lotka(results)
L

See Also

biblioAnalysis function for bibliometric analysis

summary method for class 'bibliometrix'