1. A data analysis apparatus to analyze microparticle data measured from a flow cytometer comprising: a processor configured to produce a three dimensional image based on data representative of the three dimensional image, and the three dimensional image represents a characteristic distribution of microparticles in a coordinate space, wherein the three dimensional image includes graphics corresponding to the microparticles in the coordinate space, and wherein the graphics are displayed in at least one of a different color, size, shape, and mass.