Correlation and Principal Component Analysis (PCA) Video tutorial, with a text version and example files.

How to see the relationships between variables, and the similarities between observations, in Analyse-it. The tutorial covers:

  • the relationships between variables, using scatter matrix plots
  • reducing the dimensionality of the data with principal component analysis (PCA)
  • the similarities between observations, using biplots
  • using colour and symbols to identify groups

Recorded with Analyse-it version 3.80. Some screens may look different in the current version.