How to calculate dimension using PCA

1 vue (au cours des 30 derniers jours)
Kong
Kong le 25 Mar 2020
Réponse apportée : Jalaj Gambhir le 7 Avr 2020
Hello.
I want to classify videos.
After applying dimensionality reduction like PCA, I got this data.
The original data : 25290 x 25
The reduced data : (2~25) x 25
I can't reduce data more 25 dimension.
I want to get more dimension like (50 x 25), (100 x 25), (100 x 25), etc.
However, the dimension is reduced until 25 x 25. Could you explain this problem?

Connectez-vous pour répondre à cette question.

Réponse acceptée

Jalaj Gambhir
Jalaj Gambhir le 7 Avr 2020
You can specify the number of components you require while applying PCA using 'NumComponents' option.
Have a look here.

Plus de réponses (0)

Catégories

En savoir plus sur Dimensionality Reduction and Feature Extraction dans Help Center et File Exchange

Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by