Checkouts in Different Dewey Classes
            
            
            MAT 259, 2021
            
            Zhuowei
            
            
 
            
            
            Concept
            
                This project focuses on the duration of checkout time for books in different dewey classes and tries to answer the following questions:
1. How does the duration of checkout times differs for books in different dewey classes over the past 15 years.
2. Does the covid situation impact the checkout durations?
3. For the dewey classes with the longest and shortest checkout durations, which subclassses contribute the most to the results.
            
            
 
        
            Query
            
            
            
            
            Preliminary sketches
            
                
    
                
                
                
            
            
        
            
            Process
                
                
                
                
            
            
 
            
             
            Final result
                
                
                
                
            
            
 
            
             
            Report