Figures & data
Figure 1. Ward cluster dendrograms for several European countries: (a) Bulgaria; (b) Spain; (c) France; (d) Romania; (e) Sweden; (f) Portugal.
Source: Outputs obtained in R software.
![Figure 1. Ward cluster dendrograms for several European countries: (a) Bulgaria; (b) Spain; (c) France; (d) Romania; (e) Sweden; (f) Portugal.Source: Outputs obtained in R software.](/cms/asset/c2f52b7c-75f2-4818-a08e-4dc583ebd0a0/rero_a_2076143_f0001_c.jpg)
Table 1. The synthesis of the main results using k-means algorithm for each country.