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	| 
		ID	 | 
	
		Category	 | 
	
		Severity	 | 
	
		Reproducibility	 | 
	
		Date Submitted	 | 
	
		Last Update	 | 
	
	| 
		0000861	 | 
	
	
		[ALGLIB] Data analysis	 | 
	
	
		feature	 | 
	
	
		have not tried	 | 
	
	
		2019-08-20 16:04	 | 
	
	
		2019-08-20 16:04	 | 
	 | 
	
	| 
		Reporter	 | 
	
		SergeyB	 | 
	
	
		View Status	 | 
	
		public	 | 
	
	  | 
	| 
		Assigned To	 | 
	
		SergeyB	 | 
	
	| 
		Priority	 | 
	
		normal	 | 
	
	
		Resolution	 | 
	
		implemented	 | 
	
	
		Platform	 | 
	
			 | 
	
	| 
		Status	 | 
	
		resolved	 | 
	  | 
	
	
		OS	 | 
	
			 | 
	
	| 
		Projection	 | 
	
		none	 | 
	
	  | 
	
	
		OS Version	 | 
	
			 | 
	
	| 
		ETA	 | 
	
		none	 | 
	
			
		Fixed in Version	 | 
	
		3.16.0	 | 
			
			
		Product Version	 | 
	
			 | 
		
	
	|   | 
	
	
		Target Version	 | 
	
		3.16.0	 | 
	
	
		Product Build	 | 
	
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	| 
		Summary	 | 
	
		0000861: IMPLEMENTED: variable importance for random forests	 | 
	| 
		Description	 | 
	
		Implemented three variable importance algorithms: 
* MDI (mean decrease in impurity) 
* OOB-MDI, an out-of-bag version of MDI 
* MDA (mean decrease in accuracy), also known as permutation importance	 | 
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		Steps To Reproduce	 | 
	
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		Additional Information	 | 
	
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			Programming language		 | 
		
		Unspecified		 | 
	
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		Attached Files	 | 
	
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