Bar Chartguide > Visualizations > Bar Chart Test HTML5 Version
- Bar Chart Settings
- View Settings
A Bar Chart is a good component to visualize one or few indicators on any dataset sorted and easily comparable. Each indicator of each item has a bar with a specific height according to its value. The Bar Chartin Statistics eXplorer is enhanced with many versatile functions and makes it a significant visualization complement, coordinated and linked with the map and scatter plot (and the other views). Bar Chart is based on a focus and context method using fisheye technique meaning that more bars than available space can be displayed. This is the standard configuration and is used in the initital view The bottom slider controls where focus should be along the axis. Moving the focus slider will then place new bars in focus. Bars not in focus will be displayed as thin lines - visible in the background and giving the user an idea of all bars in the data set. Clicking on the Focus button will change the Bar Chart to use standard scroll technique along the axis, as shown in the second snapshot. With the crop button the scale of the axis is controlled.
Bar Chart view has two hidden control panels to the left of the view "Bar Chart settings" and "View settings". Bar Chart settings is the first of them. The dynamic Bar Chart can visualize multiple indicators together, as shown in snapshot three, where both "Population 0-14 yrs" and "Population 65+ yrs" is visualized. Up to six stacked bars (indicators) can be displayed together. The interface for selecting multiple indicators is shown in figure 1.
Bar Chart view has two hidden control panels to the left of the view "Bar Chart settings" and "View settings". View settings is the second of them. Bar Chart can be displayed in both vertical and horizontal mode, as shown in snapshot four. The function of each individual button and slider are self explanatory and shall not be described in too much detail here but left to the user to experiment with these controls. For example, the slider controls scale values on the axis and controls the space allocated for regional names which sometimes can be very long.
Snapshot five is showing how temporal data can be visualized in the dynamic Bar Chart. By pressing "Play" the bars will animate to adjust to the value at the current time on the timeline. This gives the user a good understanding of the temporal development of individual regions as well as the indicator overall.