The correlation values will be elevated to the power β (called soft power), in order to exacerbate the high correlation values and improve the signal to noise ratio.
The value of this soft power has to be chosen such that the resulting network shows an approximate scale-free topology (SFT; meaning that the degree distribution of the network follows a power-law) as presented in the top left plot.
The other three plots can also be used to check the scale-free topology fit: there should be few nodes with a high connectivity (hub genes), hence a low mean and median connectivity and a high maximum connectivity.
The first integer value of the soft power for which the scale-free topology fit is above 80% is highlighted in red in the plots and automatically selected (but it can be adjusted manually in the next step).
The user can download the tables used to draw the plots in csv format by clicking on the Download Table button.