plotting a map with colour

i have a europe map, i plotted it with worldmap comment. Also i have some frequency values. this frequency values changes from region to region. So i want to show these frequency values with colours on the map. The frequency values is from 0 to 10.and i have 4 frequency values from spain,england,greece,czhech repuclic. In matlab documents, i looked to the counter colormap, but i couldnt implement to my programme. And probably i should do something like fitting, to show the frequency values around these countries.