Figure 15

Null model generation. Schematic visualization of the process to generate a null model from the toy example in Figure 5. (a) We start from an empty matrix with a set of threshold for columns and rows; (b) at each step we select a pair of column and row index to increment a component; (c) after a sequence of assignments, the columns (rows) with no availability are blocked (grayed); (d) last step where only one pair of column and row is available; (e) the resulting null model.