Commit: feb0096336fc5b85e6e43481b48a74591cfc504a - myprojects-hg-reborn (hg)

Commit MetaInfo

• Revision: feb0096336fc5b85e6e43481b48a74591cfc504a (tree)
• Time: 2009-11-10 21:42:33
• Author: lorenzo
• Commiter: lorenzo

Log Message

I modified this code which now provides an alternative (and equivalent) method
for the calculation of the distribution of visits duration given a time-
dependent edge-list which does not require any filtering. Also, I modified
the definition of visit duration adding an extra 20 seconds (the duration of
a timeslice).

Change Summary

• modified: Python-codes/get_presence_duration.py

Incremental Difference

diff -r 7c9e2f6d1666 -r feb0096336fc Python-codes/get_presence_duration.py
--- a/Python-codes/get_presence_duration.py	Mon Nov 09 14:06:12 2009 +0000
+++ b/Python-codes/get_presence_duration.py	Tue Nov 10 12:42:33 2009 +0000
@@ -2,14 +2,16 @@
 import scipy as s
 import pylab as p
 import numpy as n
+import sys
+import string
 
 
-def get_duration(presence_list):
+def get_duration(presence_list, delta_slice):
     tag_id_list=s.unique1d(presence_list[:,1])
     duration_list=s.arange(len(tag_id_list))
     for i in xrange(len(tag_id_list)):
         tag_sel=s.where(presence_list[:,1]==tag_id_list[i])[0]
-        duration_list[i]=max(presence_list[tag_sel,0])-min(presence_list[tag_sel,0])
+        duration_list[i]=max(presence_list[tag_sel,0])-min(presence_list[tag_sel,0])+delta_slice
 
     #there may be problems with tags which are observed only once, hence the
     #corresponding visit duration would be 0, whereas I simply cannot define it
@@ -20,11 +22,56 @@
 
     return (duration_list)
 
-presence_list=p.load("presence.dat")
-presence_list=presence_list.astype("int")
+def duplicate_and_mix_array(my_2d_arr):
 
-visit_duration=get_duration(presence_list)
+    #this function is useful to cast the time-dependent edge list
+    #into a shape more similar to the bootcount list.
+    
+    new_arr=s.zeros(2*2*len(my_2d_arr)).reshape((2*len(my_2d_arr),2))
 
-p.save("conference_visit_duration.dat",visit_duration,fmt='%d')
+    new_arr=new_arr.astype("int64")
+    sel_even=s.arange(0,len(new_arr),2)
+
+    sel_odd=s.arange(1,len(new_arr),2)
+
+    new_arr[sel_odd,0]=my_2d_arr[:,0]
+    new_arr[sel_even,0]=my_2d_arr[:,0]
+
+    new_arr[sel_odd,1]=my_2d_arr[:,2]
+
+    new_arr[sel_even,1]=my_2d_arr[:,1]
+
+    return (new_arr)
+
+
+
+read_edgelist=1 #it tells whether the data are already in the form of an edgelist or not.
+
+filename=sys.argv[1]
+
+f = open(filename)
+presence_list = [map(int, string.split(line)) for line in f.readlines()]
+f.close()
+
+presence_list = s.array(presence_list, dtype="int64")
+
+delta_slice=20 #number of seconds
+
+if (read_edgelist!=1):
+
+    visit_duration=get_duration(presence_list, delta_slice)
+
+    n.savetxt("visit_duration_afresh.dat",visit_duration,fmt='%d')
+
+else:
+    presence_list =duplicate_and_mix_array(presence_list)
+
+    n.savetxt("presence_list_afresh.dat",presence_list,fmt='%d')
+
+    visit_duration=get_duration(presence_list, delta_slice)
+
+    n.savetxt("visit_duration_afresh.dat",visit_duration,fmt='%d')
+
+    
 
 print "So far so good"