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Analisis Komponen Utama/ Principal Component Analysis dengan Software R

Written By Unknown on Rabu, 24 Juni 2015 | 23.34

Statistika > Analisis Demensional > Analisis Komponen Utama
Pada peubah pilih faktor yang mau diuji
centang analisis matrik korelasi dan scree plot
Berikut hasilnya:
> unclass(loadings(.PC)) # component loadings
           Comp.1     Comp.2
Test.A -0.7071068 0.7071068
Test.B -0.7071068 -0.7071068
> .PC$sd^2 # component variances
   Comp.1   Comp.2
1.5843047 0.4156953
> summary(.PC) # proportions of variance
Importance of components:
                                               Comp.1   Comp.2
Standard deviation      1.2586917 0.6447443
Proportion of Variance 0.7921524 0.2078476
Cumulative Proportion 0.7921524 1.0000000
Hasilnya sama dengan stata, disimpulkan cukup hanya menggunakan satu komponen saja
Dan terlihat bobot utnuk setiap faktro sama

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