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/KPMtools/polygon_area.m | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 sourcecodes/bnt-master/KPMtools/polygon_area.m

(limited to 'sourcecodes/bnt-master/KPMtools/polygon_area.m')

diff --git a/sourcecodes/bnt-master/KPMtools/polygon_area.m b/sourcecodes/bnt-master/KPMtools/polygon_area.m
new file mode 100644
index 00000000..43dffc77
--- /dev/null
+++ b/sourcecodes/bnt-master/KPMtools/polygon_area.m
@@ -0,0 +1,22 @@
+function  a = polygon_area(x,y)
+% AREA  Area of a planar polygon.
+%	AREA(X,Y) Calculates the area of a 2-dimensional
+%	polygon formed by vertices with coordinate vectors
+%	X and Y. The result is direction-sensitive: the
+%	area is positive if the bounding contour is counter-
+%	clockwise and negative if it is clockwise.
+%
+%	See also TRAPZ.
+
+%  Copyright (c) 1995 by Kirill K. Pankratov,
+%	kirill@plume.mit.edu.
+%	04/20/94, 05/20/95  
+
+ % Make polygon closed .............
+x = [x(:); x(1)];
+y = [y(:); y(1)];
+
+ % Calculate contour integral Int -y*dx  (same as Int x*dy).
+lx = length(x);
+a = -(x(2:lx)-x(1:lx-1))'*(y(1:lx-1)+y(2:lx))/2;
+a = abs(a);
-- 
cgit 1.4.1