A two-dimensional plane consists of points or lines defined by coordinates that are relative to two axes, for example, the X axis and the Y axis. The shape and size of the volume grid is determined by the number of distinct X, Y, and Z values. X axis the axis that specifies width in the coordinate system. The first value in an x,y,z coordinate set represents a location in space relative to the X axis. X variable the SAS data set variable whose values are plotted on the X axis, which creates the horizontal axis.
Y axis the axis that specifies height in the coordinate system.
The second value in an x,y,z coordinate set represents a location in space relative to the Y axis. Y variable the SAS data set variable whose values are plotted on the Y axis, which creates the vertical axis. Z axis the axis that specifies depth in the coordinate system. The third value in an x,y,z coordinate set represents a location in space relative to the Z axis. Z variable the SAS data set variable whose values are plotted on the Z axis, which creates the depth axis.