read data                                                                                                                                                                      
                                                                                                                                                                                                                                
                                                                                                                                                                                                                                
                                                                                                                                                                                                                                
                                                                                                                                                                                                                                
                                                                                                                                                                                                                                
                     generate diagrams                                                                                                                                                                                          
                                                                                                                                                                                                                                
                                                                                                                                                                                                                                
                                                                                                                                                                                                                                
                                                                                                                                                                           yes                                                  
                                                 more data?                                                                                                                                                           #blue     
                                                                                                                                                                                                                                
                                                                                                                                                                                                                                
                                                                                                                                                                                                                                
                                                                                                                                                                                                                                
                                                                                                                                                                                                                                
                                                                                                                                                                                                                                
                                                                                                                                                                                                                                
                                                                                                                                                                                                                                
                                                 read data                                                                                                                                                                      
                                                                                                                                                                                                                                
                                                                                                                                                                                                                                
                                                                                                                                                                                                                                
                                                                                                                                                                                                                                
                                                                                                                                                                                                                                
                     generate diagrams                                                                                                                                                                                          
                                                                                                                                                                                                                                
                                                                                                                                                                                                                                
                                                                                                                                                                                                                                
                                                                                                                                                                           yes                                                  
                                                 more data?                                                                                                                                                           #blue,bold