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Similar to 2D scatter charts, except that the addition of a third Z co-ordinate allows the data to be represented in 3 dimensional space.
3D Grid or regular column chart
A grid chart is effectively a 3 dimensional column chart of regular data Many packages give support for converting irregularly space data to this regular grid form for analysis.
Similar to 2D histogram except that it calculates and displays the distribution of X-Y pairs from two columns of data thereby giving a 3D distribution of data pairs. It may also be considered a special form of 3D grid.