| 摘要 |
A data display device including a memory for storing records, an information display, a processor, a display control and a user input. The processor organizes the data base records into groups, and includes a balancer for selecting groups whereby the number of records organized into each group are selectively similar. The display control controls the information display to indicate the discrete field ranges of the groups in a display organization area, and the records in a selected group in a display data area. The user input, such as touch sensitive areas, allows selection of a group to display in the data display area. A second input allows modifying the data base and the processor includes a rebalancer for selectively initiating the balancer after a selected modification of the data base. The displayed field ranges for each group may have upper and lower limits equal to the highest and lowest fields in the records of the group to indicate gaps to the user. The balancer determines (1) a selectively similar number of records C0, C1, ... CN-1, for inclusion in each of N groups, and (2) the field range for each group according to overall ordered position of the records based on the field, with the first C0 records placed in group 0, the next C1 records placed in group 1, ... and the final CN-1 records placed in group N-1. This device uses the method of (1) determining the number N of groups, (2) placing the records in substantially equal numbers between the N groups based on a selected field of the records, (3) determining the ordered limits in the field for each group, and (4) displaying the determined ordered limits for each group for use by the user input. |
