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.
Flags from the EXPO algorithm for various values of (k, λ) applied to Hospital L's unspecified infection daily counts during the winter of 2002. Green lines show the smoothed values for unspecified infection daily counts from the given hospital. Flagging times are also represented along the time axis with vertical lines that are color coded to the symbol. Note that the vertical axis is on a square root scale because of its variance stabilizing properties.
