I have a table that contains x, y coordinates (cartesian)of a large number of points. X coordinates are stored in a column called sp_x and corresponding y coordinates are stored in the column named 'sp_y'.
I download these data to matlab (please see the following coding) and assign x, y values to a matrix called xy. Now I want to see the dense areas (areas where the point density is high). Does anybody know a way to do this? pls help.
curs1 = exec(conn, 'select sp_x, sp_y from road_part6_trajectories_oneway2_new_segments_cartesian2');
format long;
curs1 = fetch(curs1);
r=rows(curs1);
AA = curs1.Data;
x = [AA{:,1}]';
y = [AA{:,2}]';
for i=1:5
xy(i,1)=x(i);
xy(i,2)=y(i);
end;
