R functions to perform and display Google Trends queries
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README.md

gtrendsR Travis-CI Build Status AppVeyor Build Status License CRAN Downloads

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.

Changes in Google Trends API

Due to recent changes to Google Trends API, the CRAN version of the package is no longer working. If you wan to continue to query Google Trends, you have to install the development version of the package. This will be soon deployed on CRAN.

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)