Uczenie maszynowe w analizie marketingowej w R
Verena Pflieger
Data Scientist at INWT Statistics
# Proportion of variance explained:
summary(pcaCust)
Importance of components:
PC1 PC2 PC3 PC4 PC5 PC6 PC7
Standard deviation 2.0951 1.8379 1.2960 1.20415 1.12301 1.07453 0.80486
Proportion of Variance 0.2743 0.2111 0.1050 0.09062 0.07882 0.07216 0.04049
Cumulative Proportion 0.2743 0.4855 0.5904 0.68106 0.75989 0.83205 0.87254
PC8 PC9 PC10 PC11 PC12 PC13
Standard deviation 0.78236 0.72452 0.61302 0.48428 0.36803 0.25901
Proportion of Variance 0.03826 0.03281 0.02349 0.01466 0.00847 0.00419
Cumulative Proportion 0.91079 0.94360 0.96709 0.98175 0.99021 0.99440
PC14 PC15 PC16
Standard deviation 0.20699 0.17126 0.13170
Proportion of Variance 0.00268 0.00183 0.00108
Cumulative Proportion 0.99708 0.99892 1.00000
Kryterium Kaisera-Guttmana: wartość własna > 1
pcaCust$sdev ^ 2
[1] 4.38961593 3.37778445 1.67965616 1.44997580 1.26115351 1.15461579
[7] 0.64780486 0.61209376 0.52492468 0.37579685 0.23452736 0.13544710
[13] 0.06708362 0.04284504 0.02933027 0.01734481
Wykres osypiska: „Znajdź łokieć"
screeplot(pcaCust, type = "lines")
box()
abline(h = 1, lty = 2)

| Wyjaśniona wariancja | Kaiser-Guttman | Wykres osypiska |
|---|---|---|
| 5 | 6 | 6 |
biplot(pcaCust, choices = 1:2, cex = 0.7)

Uczenie maszynowe w analizie marketingowej w R