how to reduce the dimension of a feature space?
1 visualizzazione (ultimi 30 giorni)
Mostra commenti meno recenti
I have 260 sample,each sample has 320 feature (x is a matrix with 260 rows & 320 column).in order to improve my classification,i need to reduce these 320 column(i mean number of features).but i dont know how to do. when i use for example:
[pc,score,latent,tsquare] = princomp(X);
red_dim = score(:,1:50);
how to reconstruct the matrix with fewer column?
when i use :
residuals = pcares(X,ndim)
the dimension of residuals is the same of x !!!!
0 Commenti
Risposte (1)
Vedere anche
Categorie
Scopri di più su Dimensionality Reduction and Feature Extraction in Help Center e File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!