... 

//Build the map (upper panel) 
GPLGraph map = new GPLGraph(); 
map.setExpression("LONGITUDE*LATITUDE"); 

//The path of the army 
Path path = new Path(); 
path.setSize("SURVIVED"); 
path.setColor("DIRECTION"); 
path.setSplitter("DIVISION"); 
map.addElement(path); 

//Label the cities 
Points points = new Points(); 
points.setPosition("LON_CITY*LAT_CITY"); 
points.setLabel("CITY"); 

 map.addElement(points); 

 //Build the line graph (lower panel) 

 GPLGraph lineGraph = new GPLGraph(); 
 lineGraph.setExpression("LONGITUDE*TEMPERATURE"); 

 //The temperature line 
 Line line = new Line(); 
 line.setPosition("LON_TEMP*TEMPERATURE"); 
 lineGraph.addElement(line); 

 //Label the dates on the line 
 Points pointTemp =new Points(); 
 pointTemp.setUseLabelAsPoint(true); 
 pointTemp.setPosition("LON_TEMP*TEMPERATURE"); 
 pointTemp.setLabel("DATE"); 
 lineGraph.addElement(pointTemp);