Figure 2. Mean 
and standard deviation 
of the distributions of the logarithm of the weights vs. number of nodes 
of samples from an ensemble of power-law sequences with 
.
The black circles correspond to 
, the red squares correspond to 
. The error bars are smaller than the symbols. The solid black line and the dashed red line show the outcomes of fits on the data. The linearity of the data on a logarithmic scale indicates that the 
and 
follow power-law scaling relations with 
: 
and 
. The slopes of the fit lines are an estimate of the value of the exponents: 
and 
.