categories              Google Trends categories.
countries               Word countries ISO code.
extract_top_rising      Extract top and rising searches
gtrends                 Google Trends Query
plot.gtrends            Plot Google Trends interest over time
setHandleParameters     If 'gtrends' should be used behind a proxy,
                        especially with NTLM authentication mode, you
                        need to set the proxy parameters and
                        credentials using "setHandleParameters"
                        function
