From 8070dc963753142bb86c4ed698d91fd623ed28e7 Mon Sep 17 00:00:00 2001
From: ziejd2
Date: Thu, 28 Sep 2017 15:04:40 -0500
Subject: BNW using Octave instead of Matlab.

This version of BNW should perform the same as the original version. The only difference is that it uses Octave instead of Matlab when running BayesNet Toolbox during parameter learning.

I am calling this BNW_1.02. It can be accessed at:
compbio.uthsc.edu/BNW_1.02
---
 sourcecodes/bnt-master/graph/pred2path.m | 78 ++++++++++++++++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 sourcecodes/bnt-master/graph/pred2path.m

(limited to 'sourcecodes/bnt-master/graph/pred2path.m')

diff --git a/sourcecodes/bnt-master/graph/pred2path.m b/sourcecodes/bnt-master/graph/pred2path.m
new file mode 100644
index 00000000..4763d12c
--- /dev/null
+++ b/sourcecodes/bnt-master/graph/pred2path.m
@@ -0,0 +1,78 @@
+function rte = pred2path(P,s,t)
+%PRED2PATH Convert predecessor indices to shortest paths from node 's' to 't'.
+%   rte = pred2path(P,s,t)
+%     P = |s| x n matrix of predecessor indices (from DIJK)
+%     s = FROM node indices
+%       = [] (default), paths from all nodes
+%     t = TO node indices
+%       = [] (default), paths to all nodes
+%   rte = |s| x |t| cell array of paths (or routes) from 's' to 't', where
+%         rte{i,j} = path from s(i) to t(j)
+%                  = [], if no path exists from s(i) to t(j)
+%
+% (Used with output of DIJK)
+
+% Copyright (c) 1998-2001 by Michael G. Kay
+% Matlog Version 5 22-Aug-2001
+
+% Input Error Checking ******************************************************
+error(nargchk(1,3,nargin));
+
+[rP,n] = size(P);
+
+if nargin < 2 | isempty(s), s = (1:n)'; else s = s(:); end
+if nargin < 3 | isempty(t), t = (1:n)'; else t = t(:); end
+
+if any(P < 0 | P > n)
+   error(['Elements of P must be integers between 1 and ',num2str(n)]);
+elseif any(s < 1 | s > n)
+   error(['''s'' must be an integer between 1 and ',num2str(n)]);
+elseif any(t < 1 | t > n)
+   error(['''t'' must be an integer between 1 and ',num2str(n)]);
+end
+% End (Input Error Checking) ************************************************
+
+rte = cell(length(s),length(t));
+
+for i = 1:length(s)
+   if rP == 1
+      si = 1;
+   else
+      si = s(i);
+      if si < 1 | si > rP
+         error('Invalid P matrix.')
+      end
+   end
+   for j = 1:length(t)
+      tj = t(j);
+      if tj == s(i)
+         r = tj;
+      elseif P(si,tj) == 0
+         r = [];
+      else
+         r = tj;
+         while tj ~= s(i)
+            if tj < 1 | tj > n
+               error('Invalid element of P matrix found.')
+            end
+            r = [P(si,tj) r];
+            tj = P(si,tj);
+         end
+      end
+      rte{i,j} = r;
+   end
+end
+
+if length(s) == 1 & length(t) == 1
+   rte = rte{:};
+end
+
+%rte = t;
+while 0%t ~= s
+   if t < 1 | t > n | round(t) ~= t
+      error('Invalid ''pred'' element found prior to reaching ''s''');
+   end
+   rte = [P(t) rte];
+   t = P(t);
+end
+
-- 
cgit 1.4.1