118 	groups = []
122 			groups.append(group)
123 	return groups
126 	groups	= []
131 		groups.append(group)
142 	return groups
145 	groups = []
154 			groups.append(group)
161 	return groups
176 def getNumCasesInGroups (groups):  argument
178 	for group in groups:
189 def selectCasesInGroups (results, groups):  argument
191 	for group in groups:
196 def selectRandomSubset (results, groups, limit, seed):  argument
198 	numSelect		= min(limit, getNumCasesInGroups(groups))
201 	random.shuffle(groups)
205 		group = groups[groupNdx]
207 			del groups[groupNdx]
208 			if groupNdx == len(groups):
216 		groupNdx = (groupNdx + 1) % len(groups)
274 			groups = createGroups(results, readGroupList(options.groups_file))  variable
276 			groups = createLeafGroups(results)  variable
277 		results = selectRandomSubset(results, groups, int(options.limit), int(options.seed))
279 		groups = createGroups(results, readGroupList(options.groups_file))  variable
280 		results = selectCasesInGroups(results, groups)