dimensionality-reduction

Reducing dimension of dataset

Hi, I'm trying to reduce dataset dimension. PCA is a good metric but that gives me new dataset. My goal is to determine from number of events (e.g. 60) and number of trials (e.g. 6) which events are more relevant. For example: 1st, 3rd, 21st, 45th ... (N total) events are good enough to approximate behavior of dataset. That will al...