public void filterByPercentage(PercentageFilter filter) {
		for (GTreeNode node : getChildren()) {
			FunctionBitPatternsGTreeNode fspNode = (FunctionBitPatternsGTreeNode) node;
			if (filter.allows(fspNode.getPercentage())) {
				fspNode.filterByPercentage(filter);
			}
			else {
				removeNode(fspNode);
			}
		}
		return;
	}
Filter out nodes in the tree by the percentage of instruction sequences which pass through them
@param filter the percentage filter
Ghidra/Features/BytePatterns/src/main/java/ghidra/bitpatterns/info/FunctionBitPatternsGTreeNode.java