REFLINE Subcommand (IGRAPH command)

The REFLINE subcommand inserts a reference line for the specified variable at the specified value. Optional keywords are:

LABEL={ON|OFF}. Display a label for the reference line. For variables with defined value labels, the value label for the specified value is displayed. If there is no defined value label for the specified value, the specified value is displayed.

SPIKE={ON|OFF}. Display spikes from the reference line to individual data points.

Example

IGRAPH 
  /X1 = VAR(gender) TYPE = CATEGORICAL
  /Y = VAR(salary) TYPE = SCALE 
  /BAR(MEAN) 
  /REFLINE salary 30000 LABEL=ON.