In this case, daily total precipitation data over a 1 year period are displayed for the Susquehanna River Basin in Pennsylvania. The image above is a parallel coordinate plot with certain data records highlighted using brushing. This is an example of linked brushing, as described above, in a scatterplot matrix. This 3-dimensional shaded relief representation of a portion of Pennsylvania uses color to represent maximum daily temperature. The ability to display multiple data sets at once, combined with the power to interactively change the display of such data, helps users quickly and intuitively explore their data.
Visualization can help users to both confirm existing hypothesis as well as formulate new ones. .