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Table 2.

Fitted parameters and p-value of the goodness-of-fit for power law (PL), power law with cutoff (PLwC), and Yule-Simon (Y-S) distributions. No set of data is well fitted by a PL distribution. However, the PLwC seems to be a good fit for three journals (SCI, PLC, CHA), and the Yule-Simon distribution seems to correctly fit the distribution of NEM and SIA. For the other journals, none of the distributions seem to fit the data appropriately.

 PLPLwCY-S
αp (%)βγp (%)ρp (%)
NAT 2.58 0.0 2.11 0.07 0.0 3.10 0.0 
PNA 2.53 0.0 2.30 0.02 0.0 2.83 0.0 
SCI 2.68 0.0 2.30 0.06 16.64 3.28 0.02 
LAN 2.47 0.0 2.09 0.05 0.18 2.90 0.0 
NEM 2.76 0.0 2.36 0.07 0.2 3.43 8.82 
PLC 2.30 0.0 1.92 0.10 13.42 3.01 0.92 
ACS 2.11 0.0 1.95 0.01 0.0 2.32 0.0 
TAC 2.08 0.0 1.84 0.04 0.0 2.51 0.02 
ENE 2.36 0.0 2.12 0.06 0.12 3.15 0.0 
CHA 2.47 0.0 2.28 0.05 80.84 3.43 0.0 
SIA 2.49 0.0 2.20 0.08 2.24 3.49 9.06 
AMA 2.26 0.0 1.72 0.14 0.18 2.95 0.0 
PRD 1.49 0.0 1.24 0.005 0.02 1.55 0.0 
PRL 1.73 0.0 1.52 0.005 0.12 1.80 0.0 
 PLPLwCY-S
αp (%)βγp (%)ρp (%)
NAT 2.58 0.0 2.11 0.07 0.0 3.10 0.0 
PNA 2.53 0.0 2.30 0.02 0.0 2.83 0.0 
SCI 2.68 0.0 2.30 0.06 16.64 3.28 0.02 
LAN 2.47 0.0 2.09 0.05 0.18 2.90 0.0 
NEM 2.76 0.0 2.36 0.07 0.2 3.43 8.82 
PLC 2.30 0.0 1.92 0.10 13.42 3.01 0.92 
ACS 2.11 0.0 1.95 0.01 0.0 2.32 0.0 
TAC 2.08 0.0 1.84 0.04 0.0 2.51 0.02 
ENE 2.36 0.0 2.12 0.06 0.12 3.15 0.0 
CHA 2.47 0.0 2.28 0.05 80.84 3.43 0.0 
SIA 2.49 0.0 2.20 0.08 2.24 3.49 9.06 
AMA 2.26 0.0 1.72 0.14 0.18 2.95 0.0 
PRD 1.49 0.0 1.24 0.005 0.02 1.55 0.0 
PRL 1.73 0.0 1.52 0.005 0.12 1.80 0.0 
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