Couldn't resolve reference to ActionDefinition 'clustering_DBScan'.

[Steffel Fenix]

Hello, 

I'm trying to use the clustering_DBScan method but the compilator can't find the method, the code is:

buildingclusters <- clustering_DBScan(building, ["rdm"]);

I've tried with a simple_clustering_by_distance and it's working.

GAMA Version 1.6.1

Thanks

In case this is the source code:

model city

global{

   file shape_file_buildings <- file('../includes/building.shp');

   file shape_file_roads <- file('../includes/road.shp');

   file shape_file_bounds <- file('../includes/bounds.shp');

   geometry shape <- envelope(shape_file_roads);

    int nb_people <- 100;

int day_time update: time mod 144 ;

int min_work_start <- 36;

int max_work_start <- 60;

int min_work_end <- 84; 

int max_work_end <- 132; 

float min_speed <- 50.0;

float max_speed <- 100.0; 

graph the_graph;

list buildingclusters;

   init{

  create building from: shape_file_buildings with: [type::string(read ('NATURE'))] {      

           if type='Industrial' {

               color <- rgb('blue');

                electricityService s<- electricityService(electricityService) ;

              add s to: services;

           }

           else if type='Residential'{

               color <- rgb('red');

               

           }

  }

  create road from: shape_file_roads ;

            the_graph <- as_edge_graph(list(road));

           

           list<building> residential_buildings <- building where (each.type='Residential');

           list<building>  industrial_buildings <- building where (each.type='Industrial');

           

           

           buildingclusters <- clustering_DBScan(building, ["rdm"]);