Commit 8d47da1a authored by Tiago Peixoto's avatar Tiago Peixoto

Add scotus_majority

parent e04a83d5
#! /usr/bin/env python
# -*- coding: utf-8 -*-
# Copyright (C) 2020 Tiago de Paula Peixoto <>
# This program is free software: you can redistribute it and/or modify it under
# the terms of the GNU Affero General Public License as published by the Free
# Software Foundation, either version 3 of the License, or (at your option) any
# later version.
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
# details.
# You should have received a copy of the GNU Affero General Public License along
# with this program. If not, see <>.
from .. import *
import pandas
title = "SCOTUS majority opinions"
description = """Network of legal citations among majority opinions written by the Supreme Court of the United States (SCOTUS), from 1754-2002 (2008 version) and 1792-2006 (2007 version). In addition to the citation network, node metadata is included giving some description of each opinion.[^icon]
[^icon]: Description obtained from the [ICON]( project."""
tags = ['Informational', 'Legal', 'Unweighted', 'Metadata', 'Temporal']
url = ''
citation = [('J. H. Fowler and S. Jeon, "The Authority of Supreme Court Precedent." Social Networks 30(1), 16-30 (2008)', ''),
('J. H. Fowler et al., "Network Analysis and the Law: Measuring the Legal Importance of Supreme Court Precedents." Political Analysis 15(3), 324-346 (2007)', '')]
icon_hash = '57114fb76afce8e9253875c7'
ustream_license = None
upstream_prefix = ''
files = [(('', ''), "2008", 'loadtxt'),
''), "2007", 'csv')]
def fetch_upstream(force=False):
return fetch_upstream_files(__name__.split(".")[-1], upstream_prefix, files,
def parse(alts=None):
global files
name = __name__.split(".")[-1]
for fnames, alt, fmt in files:
if alts is not None and alt not in alts:
if isinstance(fnames, str):
fnames = [fnames]
with ExitStack() as stack:
fs = [stack.enter_context(open_upstream_file(name, fn, "rb")) for fn in fnames]
g = parse_graph([fs[0]], fmt, directed=True)
vs = {[v] : v for v in g.vertices()}
if alt == "2008":
vps = ["usid", "parties", "overruled", "overruling", "oxford"]
for p in vps:
g.vp[p] = g.new_vp("string")
reader = csv.reader(io.TextIOWrapper(fs[1]))
for row in reader:
id = row[0]
v = vs[id]
except KeyError:
for p, val in zip(vps, row[1:len(vps)+1]):
g.vp[p][v] = val
g.vp.lexid =
del g.vp["name"]
vps = ["usid", "name", "amiciz_num", "auth_num", "oxford_num",
"cq_num", "nyt_num", "insc_num", "apin_num", "stin_num",
"citedyr_num", "citingyr_num", "size_num", "age",
"insc_num_lag", "apin_num_lag", "stin_num_lag",
"outsc_num_lag", "sc_cumul_cites_lag"]
for p in vps:
g.vp[p] = g.new_vp("string")
df = pandas.read_stata(fs[1])
for index, row in df.iterrows():
v = vs[row["lexid"]]
except KeyError:
for p in vps:
g.vp[p][v] = row[p]
for p in g.vp.keys():
g.vp[p] = g.vp[p].copy("int")
except ValueError:
yield alt, g
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