Fig. 4.

Heatmap of the balance/randomness tradeoff $d\left(i\right)=\sqrt{{\left\{I,m,b,(,i,)\right\}}^2+{\left\{F,I,(,i,)\right\}}^2}$ vs. allocation step ($i=1,\cdots ,50$) for 12 restricted randomization procedures. The procedures are ordered by value of d(50), with smaller values (more red) indicating more optimal performance