Information Technology Reference
In-Depth Information
Age
F9
A7
F7
A6
A5
A4
F3
F1
F
F
F4
A3
Res0
Res1*Res2*Res3
Remun
R9*R10
R8
R7
R6
R5
R4
A2
Res4
Res5
R3
F5
Res6
R2
A1
Rank
R1
Rnk5
Rnk4
Rnk3
Rnk2
Res7
Q1
Female
Rnk1
Q2*Q3*Q4*Q5*Q 6
Male
Q7
F6
Gender
AQual
Q8
Q9
Resrch
Faclty
Figure 8.20
Categorical PCA biplot similar to Figure 8.19 but with lines connecting
the CLPs associated with each categorical variable. All variables except
Faclty
and
Gender
are taken as ordered. Sample points are coloured according to gender (green
=
male
and orange
=
female
). 'Axes' shifted to avoid interference with sample points.
CLPs for each variable are connected with lines. Connecting lines for ordered variables
have width varying according to ordering; different colours are used in connecting line
segments for nominal CLPs. Sample points can be represented as densities, concentration
ellipses,
α
-bags treating all as one group or separated according to faculty, income decile,
gender, etc.
