Controlling the Classification Headers

In many cases, it is not necessary to display the classification-variable name in the classification headers. Often, just the classification value is sufficient. Both the DATALATTICE and DATAPANEL layouts support the HEADERLABELDISPLAY= option. By default, HEADERLABELDISPLAY=NAMEVALUE, which shows both the variable name and the value. You can set HEADERLABELDISPLAY=VALUE to display only the value.

Row and column headers are unique to the DATALATTICE layout. By default, COLUMNHEADERS=TOP, but you can set COLUMNHEADERS=BOTTOM or COLUMNHEADERS=BOTH. Likewise, ROWHEADERS=RIGHT is the default setting, but you can set LEFT or BOTH on the ROWHEADERS= option. The location of the row or column axis information can be changed by using the DISPLAYSECONDARY= axis option. In this next example, the row headers are relocated to the left, and the axis information is relocated to the right. Note that DISPLAY=NONE is also needed to remove the default row axis information from the left side.

layout datalattice rowvar=product_group  /
  rowdatarange=union
  rowgutter=5px
  rowheaders=left
  headerlabeldisplay=value
  columnaxisopts=( display=(tickvalues) )
  rowaxisopts=   ( display=none displaysecondary=(tickvalues)
                  linearopts=(tickvalueformat=dollar12.)
                  griddisplay=on offsetmin=0 );

DATALATTICE Layout with COLUMNHEADERS=LEFT

Both the DATAPANEL and DATALATTICE layouts support options that control the background and text properties of the classification headers. By default, the background of the cell headers is transparent (HEADEROPAQUE=FALSE).

To set a background color, you must set the HEADERBACKGROUNDCOLOR= option to a fill color. In the following example, the color is set as a style reference. You must also set HEADEROPAQUE=TRUE. You can use the HEADERLABELATTRS= option to set the text properties of the classification headers. For example, if the classification values are long, you can reduce their font size with HEADERLABELATTRS= (SIZE=6pt), or use the smallest font in the current style by setting HEADERLABELATTRS=GraphDataText. In the following example, the headers are set to be bold.

layout datalattice rowvar=product_group  /
  rowdatarange=union
  rowgutter=5px
  rowheaders=left
  headerlabeldisplay=value
  headerlabelattrs=(weight=bold)
  headeropaque=true
  headerbackgroundcolor=GraphAltBlock:color
  columnaxisopts=(display=(tickvalues) )
  rowaxisopts=   (display=none displaysecondary=(tickvalues)
                  linearopts=(tickvalueformat=dollar12.)
                  griddisplay=on offsetmin=0);