Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Left: Scatterplot of PC1 vs. PC2. Shows joint distribution of scores. Main lesson is PC1 appears strongly correlated with age, but PC2 does not. Middle: PC1 vs. age for the zero-dimensional topological features verifies strong correlation of PC1 with age. Right: PC1 vs. age for the one-dimensional topological features exhibits even stronger correlation.
