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.
Top Terms across PC2 and Their Distribution in COVID-19 and Non-COVID-19 Abstracts
The top 50 key terms, selected by the magnitude of their component values on PC2, are unevenly distributed among the COVID-19 and non-COVID-19 abstracts. The proportion of abstracts in each group (orange for COVID-19 abstracts and blue for non-COVID-19 abstracts) mentioning each term is represented by the y axis and each individual word is plotted along the x axis.
