Applying cumsum correctly to follow the visualization paper exactly

[rdangovs]

867-Project/plotting_util.py

Lines 114 to 122 in 49698ef

	def cumsum(ordered_dict_list):
	cumsum_list = [ordered_dict_list[0]]
	for elt in ordered_dict_list[1: ]:
	sum_so_far = cumsum_list[-1]
	new_elt = {state_name:sum_so_far[state_name] + elt[state_name]\
	for state_name in elt}
	cumsum_list.append(new_elt)
	return cumsum_list

-- this cumsum function takes [theta_0, theta_1 - theta_0, ..., theta_n - theta_{n-1}] and returns [theta_0, theta_1, theta_2, ..., theta_{n-1}, theta_n]. We should subtract theta_n, no? I did that and this is the result I got. Also, the latest version of master doesn't apply cumsum before computing the PCA directions.