principal component analysis

  1. S

    Is it logical to perform PCA and reduction on observations instead of features?

    I am currently working with a set of code called GPMSA that was published by LANL. The code serves to create a Gaussian process model of some simulator and perform regression with experimental data. I am working to understand everything but there is something that is confusing me. PCA is...
  2. M

    Interpreting principal components

  3. M

    Arthritis trial data: Advanced multivariate stats problem.

    I am a doctor planning a post-hoc exploratory analysis of some clinical trial data and would like some suggestions as to the best approach. Patients with arthritis have many inflamed joints; in clinical trials, doctors test 66 of these for tenderness and swelling. The result is trinary: 0; no...