540
Elisabeta JABA, Alina Măriuca IONESCU, Corneliu IAłU, Christiana Brigitte BALAN
1.0
0.5
0.0
-0.5
Component 1
1.0
0.5
0.0
-0.5
C
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p
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n
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t
2
eau_pot
canal
gaz_nat
en_therm
médecins
lits_hop
dur_moy_vie
r_minf
nr_fac
r_pop_éc
r_schom
pop_hotr
pop_fin
pop_imm
pop_san
pop_ensg
pop_com
pop_constr
pop_agr
p_rurale
dép_rech_hab
PIB_hab
Component Plot in Rotated Space
Source: Output obtained in SPSS with PCA
Figure 2: Variables’ position on the first two factorial axes after the rotation of the axes
As some variables present correlation coefficients with the
factorial axes that have
comparable values on both axes, for a better interpretation of PCA results, it was also gener-
ated the rotated solution using an oblique rotation
with Direct Oblim method, available in
SPSS software.
After axes’ rotation, the correlation of the variables with the two axes is better and the
principal components are more easily observed: the potential of development (first axis) and
resources’ quality (second axis).
The analysis of the factorial maps obtained before and after axes’ rotation (Figure 2)
shows that there are differences in regional profile as regards the economic development and
available resources of the counties.
Graphical representation of the counties in the plane of the
first two factorial axes
(Figure 3) highlights the existence of an outlier (Bucharest). Since the capital of the country
presents very different characteristics of economic development compared to other adminis-
trative-territorial units, it requires an individual
analysis of these features, and it is not
included in further analysis.
The Evaluation of the Regional Profile of the Economic Development in Romania
541
6.00000
4.00000
2.00000
0.00000
-2.00000
REGR factor score 1 for analysis 1
3.00000
2.00000
1.00000
0.00000
-1.00000
-2.00000
R
E
G
R
f
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re
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