Dopo aver eseguito l'analisi dei componenti principali (PCA), voglio proiettare un nuovo vettore nello spazio PCA (ovvero trovare le sue coordinate nel sistema di coordinate PCA).
Ho calcolato PCA in linguaggio R utilizzando prcomp
. Ora dovrei essere in grado di moltiplicare il mio vettore per la matrice di rotazione PCA. I componenti principali in questa matrice devono essere disposti in righe o colonne?
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