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author | root | 2012-05-08 18:39:56 -0500 |
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committer | root | 2012-05-08 18:39:56 -0500 |
commit | ea46f42ee640928b92947bfb204c41a482d80937 (patch) | |
tree | 9b27a4eb852d12539b543c3efee9d2a47ef470f3 /web/webqtl/heatmap/slink.py | |
parent | 056b5253fc3857b0444382aa39944f6344dc1ceb (diff) | |
download | genenetwork2-ea46f42ee640928b92947bfb204c41a482d80937.tar.gz |
Add all the source codes into the github.
Diffstat (limited to 'web/webqtl/heatmap/slink.py')
-rwxr-xr-x | web/webqtl/heatmap/slink.py | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/web/webqtl/heatmap/slink.py b/web/webqtl/heatmap/slink.py new file mode 100755 index 00000000..3de41de4 --- /dev/null +++ b/web/webqtl/heatmap/slink.py @@ -0,0 +1,141 @@ +# Copyright (C) University of Tennessee Health Science Center, Memphis, TN. +# +# 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. +# +# This program is available from Source Forge: at GeneNetwork Project +# (sourceforge.net/projects/genenetwork/). +# +# Contact Drs. Robert W. Williams and Xiaodong Zhou (2010) +# at rwilliams@uthsc.edu and xzhou15@uthsc.edu +# +# +# +# This module is used by GeneNetwork project (www.genenetwork.org) +# +# Created by GeneNetwork Core Team 2010/08/10 +# +# Last updated by GeneNetwork Core Team 2010/10/20 + +#--Only imported by correlationPage.py. +# +#Functions: +#slink(lists) -- the only function called outside of this file. +#nearest(lists,i,j) -- some sort of recursive function. +#printarray(array,n) -- prints n elements of the given array +#this is a myseterious piece of code in GN that Kev Adler and Rob Williams do not understand. +#but is used in some way by the Traits Correlation function +#Kev and Rob suspect that the d2 matrix below is unused +#We do not understand the signifance of "d" but Kev suspects it is unimportant +#These comments by Kev and Rob: May 23, 2008 + +d = [[0,9,3,6,11],[9,0,7,5,10],[3,7,0,9,2],[6,5,9,0,8],[11,10,2,8,0]] +d2 = [[0,9,5.5,6,11],[9,0,7,5,10],[5.5,7,0,9,2],[6,5,9,0,3],[11,10,2,3,0]] + +def nearest(lists,i,j): + if type(i) == type(1) and type(j) == type(1): + return lists[i][j] + elif type(i) == type(1): + dist = 1e10 + for itemj in j[:-1]: + d = nearest(lists,i,itemj) + if dist > d: + dist = d + elif type(j) == type(1): + dist = 1e10 + for itemi in i[:-1]: + d = nearest(lists,itemi,j) + if dist > d: + dist = d + else: + dist = 1e10 + for itemi in i[:-1]: + for itemj in j[:-1]: + d = nearest(lists,itemi,itemj) + if dist > d: + dist = d + return dist + +def printarray(array,n): + print "\n" + for i in range(n): + print array[i][:n] + print "\n" + +def slink(lists): + try: + if type(lists) != type([]) and type(lists) != type(()): + raise 'FormatError' + else: + size = len(lists) + for item in lists: + if type(item) != type([]) and type(item) != type(()): + raise 'FormatError' + else: + if len(item) != size: + raise 'LengthError' + for i in range(size): + if lists[i][i] != 0: + raise 'ValueError' + for j in range(0,i): + if lists[i][j] < 0: + raise 'ValueError' + if lists[i][j] != lists[j][i]: + raise 'MirrorError' + except 'FormatError': + print "the format of the list is incorrect!" + return [] + except 'LengthError': + print "the list is not a square list!" + return [] + except 'MirrorError': + print "the list is not symmetric!" + return [] + except 'ValueError': + print "the distance is negative value!" + return [] + except: + print "Unknown Error" + return [] + listindex = range(size) + listindexcopy = range(size) + listscopy = [] + for i in range(size): + listscopy.append(lists[i][:]) + initSize = size + candidate = [] + while initSize >2: + mindist = 1e10 + for i in range(initSize): + for j in range(i+1,initSize): + if listscopy[i][j] < mindist: + mindist = listscopy[i][j] + candidate=[[i,j]] + elif listscopy[i][j] == mindist: + mindist = listscopy[i][j] + candidate.append([i,j]) + else: + pass + newmem = (listindexcopy[candidate[0][0]],listindexcopy[candidate[0][1]],mindist) + listindexcopy.pop(candidate[0][1]) + listindexcopy[candidate[0][0]] = newmem + + initSize -= 1 + for i in range(initSize): + for j in range(i+1,initSize): + listscopy[i][j] = nearest(lists,listindexcopy[i],listindexcopy[j]) + listscopy[j][i] = listscopy[i][j] + #print listindexcopy + #printarray(listscopy,initSize) + listindexcopy.append(nearest(lists,listindexcopy[0],listindexcopy[1])) + return listindexcopy + + + |