ChartSeries.selectRange Method
        
 Selects the data points falling within the specified ranges of X axis and/or Y axis pixel positions.
 
         
        Parameters
        
            - xStart
            
 
            - 
                
Type: Number - May be null
The X axis pixel position of the inclusive start of the range. 
            - xEnd
            
 
            - 
                
Type: Number - May be null
The X axis pixel position of the inclusive end of the range. 
            - yStart
            
 
            - 
                
Type: Number
The Y axis pixel position of the inclusive start of the range.
Optional: True 
            - yEnd
            
 
            - 
                
Type: Number
The Y axis pixel position of the inclusive end of the range.
Optional: True 
            - keepPrevious
            
 
            - 
                
Type: Boolean
True to keep the previous selection, otherwise only the specified points will be selected.
Optional: True 
        
        Return Value
        
Type: Boolean
        
true if the selection of any data points changed; otherwise, false.