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.
The light gray bands indicate ± 1 standard deviation while the darker gray indicate the 5th and 95th percentile.) The spectra corresponding to low and high PC 1 score values are plotted in blue and red, respectively.
