Sumários
Class 20
30 Setembro 2024, 13:00 • Graça Trindade
Multivariate data analyses
1. Descriptive
1.2 Segmentation
Objectives
Segmentation Methods:
1) Hierarchical (agglomerative)
Different dendrograms for different agglomerative hierarchical
- interpretation of the agglomeration schedule and cluster membership
Class 19
30 Setembro 2024, 11:00 • Graça Trindade
Multivariate data analyses
1. Descritives
1.2 Segmentation
Objectives
Segmentation Methods: hierarchical (agglomerative)
- small example for 5 subjects solved by hand when the method is the nearest neighbour
The construction of the dendrogram
Class 17
25 Setembro 2024, 13:00 • Graça Trindade
PCA (conclusion)
- creating indexes from the components
Class 16
25 Setembro 2024, 11:00 • Graça Trindade
3. Multivariate data analysis
3.1 Descritive
3.1.1 Reducing the dimensionality
PCA: extraction criteria; rotation; methods to save the new variables
Interpretation