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				|  |  |             /** Queries the backend for audio feature data, draws the bar chart |  |  |             /** Queries the backend for audio feature data, draws the bar chart | 
		
	
		
			
				|  |  |              *  illustrating the frequencies of values, and appends the chart to |  |  |              *  illustrating the frequencies of values, and appends the chart to | 
		
	
		
			
				|  |  |              *  <body></body> |  |  |  | 
		
	
		
			
				|  |  |  |  |  |              *  a designated parent element | 
		
	
		
			
				|  |  |              * |  |  |              * | 
		
	
		
			
				|  |  |              *  @param audioFeature: the name of the audio feature (string) |  |  |              *  @param audioFeature: the name of the audio feature (string) | 
		
	
		
			
				|  |  |              *  @param intervalEndPoints: a sorted array of 5 real numbers defining the intervals (categories) of values, |  |  |              *  @param intervalEndPoints: a sorted array of 5 real numbers defining the intervals (categories) of values, | 
		
	
	
		
			
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