# This file is part of MAMMULT: Metrics And Models for Multilayer Networks
# 
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU 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
# General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
####
##
##
## Take a file with the degree sequence of nodes which are active on
## both layers, and compute \overline{k}(q) and \overline{q}(k),
## i.e. the two inter-layer correlation functions, where we call "k"
## the degree on the first column, and "q" the degree on the second
## column
##
##

import sys

if len(sys.argv) < 2:
    print "Usage: %s <filein>" % sys.argv[0]
    sys.exit(1)

qnn_k = {}
knn_q = {}

with open(sys.argv[1]) as f:
    for l in f:
        k, q = [int(x) for x in l.strip(" \n").split(" ")]
        if qnn_k.has_key(k):
            qnn_k[k].append(q)
        else:
            qnn_k[k] = [q]
        if knn_q.has_key(q):
            knn_q[q].append(k)
        else:
            knn_q[q] = [k]




keys= qnn_k.keys()
keys.sort()
for k in keys:
    print k, 1.0 * sum(qnn_k[k])/len(qnn_k[k])




keys= knn_q.keys()
keys.sort()
for q in keys:
    sys.stderr.write("%d %f\n" % (q, 1.0 * sum(knn_q[q])/len(knn_q[q])))