Estimate Gaussian
This commit is contained in:
		
							parent
							
								
									33e8cbac01
								
							
						
					
					
						commit
						4bc9a2b246
					
				
					 1 changed files with 5 additions and 12 deletions
				
			
		| 
						 | 
				
			
			@ -21,16 +21,9 @@ sigma2 = zeros(n, 1);
 | 
			
		|||
%               should contain variance of the i-th feature.
 | 
			
		||||
%
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
mu = 1/m * sum(X)';
 | 
			
		||||
sigma2 = 1/m * sum(bsxfun(@minus, X, mu').^2)';
 | 
			
		||||
 | 
			
		||||
% =============================================================
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
end
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
		Reference in a new issue