www.pudn.com > Classification_toolbox.part01.rar > calculate_region.m

function [region, x, y] = calculate_region(patterns, region) 
 
%This function calculates the plot region 
 
region = [min(patterns(1,:)) max(patterns(1,:)) ... 
	      min(patterns(2,:)) max(patterns(2,:)) region(5)];    
    
if (sign(region(1)) == 1) 
   region(1) = region(1) / 1.1; 
else 
   region(1) = region(1) * 1.1; 
end    
if (sign(region(3)) == 1) 
   region(3) = region(3) / 1.1; 
else 
   region(3) = region(3) * 1.1; 
end    
if (sign(region(2)) == 1) 
   region(2) = region(2) * 1.1; 
else 
   region(2) = region(2) / 1.1; 
end    
if (sign(region(4)) == 1) 
   region(4) = region(4) * 1.1; 
else 
   region(4) = region(4) / 1.1; 
end    
 
 
x   = linspace (region(1),region(2),region(5)); 
y	= linspace (region(3),region(4),region(5));