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 heat map of the elements of the matrix D2 (Eq.10). The cell (i, j) of the heat map represents the element D2(i, j) (Eq.10) multiplied by 10. Red colors denote the positive values of D2(i, j). Green colors denote the negative values of D2(i, j).
