Perform and Display Google Trends Queries.
gtrendsR
gtrendsR provides an interface for retrieving and displaying Google Trends information.
Trends (number of hits) over time as well as geographic representation of the results can be displayed.
Example
In this simple example, trends for keywords nhl, nba are retrieved for Canada and USA and then plotted from R.
library(gtrendsR)
res <- gtrends(c("nhl", "nba"), geo = c("CA", "US"))
plot(res)
Installation
Since release 1.3.0, the package is on CRAN and can be installed via
install.packages("gtrendsR")
Release-candidate packages are available in the ghrr drat repository and can installed via
install.packages("drat") # easier repo access + creation
drat:::add("ghrr") # make it known
install.packages("gtrendsR") # install it
Development version (which may be less stable) can be installed directly from this repository via
if (!require("devtools")) install.packages("devtools")
devtools::install_github("PMassicotte/gtrendsR")
Using gtrendsR behind a PROXY.
If gtrendsR should be used behind a proxy, especially with NTLM authentication mode, you need to set the proxy parameters using "setHandleParameters" function
Example
library(gtrendsR)
setHandleParameters(user = "xxxx", password = "*******", domain = "mydomain", proxyhost = "10.111.124.113", proxyport = 8080)
res <- gtrends(c("nhl", "nba"), geo = c("CA", "US"))
Authors
Philippe Massicotte and Dirk Eddelbuettel
License
GPL (>= 2)