Principal Component Analysis PCA

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Alsadegh Mohamed
Alsadegh Mohamed 2018년 4월 7일
답변: Sulaymon Eshkabilov 2021년 6월 1일
I need to use PCA for features selection. Foe example if the number of features = 300 the result by PCA = 15. I used PCA command in matlab but the result complete transformation of the feature (300), but I need only the important features to save the accuracy.
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Image Analyst
Image Analyst 2018년 4월 7일
OK good luck. Do you have a question (rather than an announcement)? If so, you forgot to attach your code and code. So do that then please ask your question after reading this: http://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer

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답변 (2개)

KSSV
KSSV 2018년 4월 7일
pca gives you out score of each feature. You sort the scores and pick the first fifteen scores and the respective features.

Sulaymon Eshkabilov
Sulaymon Eshkabilov 2021년 6월 1일

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