11 Jul
                
                    2011
                
            
            
                11 Jul
                
                '11
                
            
            
            
        
    
                6:15 p.m.
            
        Hi. I am wondering what is the common practice with respect to how many significant figures should be used for reporting Rfree at different resolution? Should we always use all 4 figures that are reported by the program? Thank you, Jenn