public void makeNGrams(int numNGrams) {
		for (int i = 0; i < numNGrams - 1; ++i) {
			for (DataVertex node : nodeList) {
				if (node.isCollapsed()) {
					continue;					// Don't hash if disconnected from graph
				}
				node.nextNGramSource(i);		// Construct (n+1)-gram from existing n-gram
			}
		}
	}
Populate n-gram lists for every node.
@param numNGrams is the number of n-grams to generate per node
Ghidra/Features/CodeCompare/src/main/java/ghidra/features/codecompare/graphanalysis/DataGraph.java