Census Bureau Statistical Graphics

For some time, the U. S. Bureau of the Census has published statistical data in graphical as well as tabular formats. These graphical displays include barcharts, piecharts, line graphs, time series plots and univariate and bivariate statistical maps. Such publication graphics are provided both monochromaticaly and in color. Recently, the Census Bureau has initiated a research program to investigate the application of computer graphics to statistical data analysis. Examples of such analytical graphics are regression and time series plots, scatterplots used in outlier analysis, line graphs depicting rate of change overlayed on barcharts depicting level or value of one or more variables, and color statistical maps. This paper describes the computer graphics hardware and software capabilities of the Census Bureau, experience in computerized statistical graphics, and research for employing computer graphics as an analytical tool In statistical data analysis.