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.
PCA of the data with 7 extracted features. Each point belongs to three categories, namely material of sensor, type of gas, and ppm level of the gas. For visualization purposes, three plots are shown where the data points have been colored according to category belonging.
