userType in the payload which was giving a 401 error (#413). Thanks to @philipwlewis for reporting and fix proposition.read.csv() now uses encoding = "UTF-8" to better deal with non-ascii characters (#394).
Setting locale in queries via the hlargument now returns data (@marcf-91). For example, gtrends(keyword = "Macron", geo = "FR", hl = "fr").
It was difficult to maintain an up-to-date database of all country codes supported by Google because they do not provide such a list. gtrends() now only checks the syntax structure of the entered code to make sure it matches the iso format (#390).
gtrends() as a new parameter compared_breakdown. When set to TRUE, then the relative hits across the keywords will be returned. Can only be used if one geo is used conjointly with more than one keyword. For example: head(gtrends(keyword = c("nhl", "nba"), geo = "CA", compared_breakdown = TRUE)$interest_by_region) (#404).Skip internet-based tests on CRAN that were found to randomly fail on Debian machine and locally under Ubuntu-latest (#384).
Explicitly verify if internet is available before launching the unit tests (#379).
Added support for NULL proxy domain, and additional curl options (#339) @alfirrell.
Handling related topics with only "Top" or "Rising" sections, as well as those with both @alfirrell.
Switch Travis CI to R 4.0.0, use bionic as base.
Fixes subsetting in extract_related_topics and data processing for Namibia. (#353) @joachim-gassen
Add more country codes. (#166)
Fixes CRAN error on r-devel. (#365)
Queries returning hourly data giving without keyword no longer crashes (#323, #336). @JBleher
Added the possibility to use search operators like "+" and "-". @JBleher
Added unit test using the tinytest package (#316).
Fixes issues with Google Trends API changes.
Added more options to specify time interval of the search (#289). @JBleher
Fixed also issues with different results when requests were issued from different time zones and different locale settings.
Download multiple time ranges for direct comparison.
Now also an option to only download interest over time is added.
Showing the returned status code when it is failing (i.e. not 200) (#304).
Bug fix keyword encoding when there are multiple keywords with '&'. (#300, #301) @ThiesDS
gtrendsR can now be used behind a proxy, see setHandleParameters() (#245) @VictorYammouni
Fixes breaking changes introduced by Google Trends (#273, #274)
Now able to search with "&" character (#267). gtrends("A&W", geo = "CA")
gtrendsR now depends on R >= 3.2.0 (#264)
Fixes error when mixing topic and search terms in query (#284) @mamut86
It is now possible to use DMA (gtrends(keyword="obama",geo="US-AL-630")) (#238).
Added missing country codes (#213).
Can now mix both country and sub country codes (plot(gtrends("pizza", geo = c("CA", "GB-ENG")))) (#218).
New parameter low_search_volume allowing low search volume regions (#229).
Fixing breaking changes that were introduced by Google Trends (#252) @kevinmager65.
Can now search without keywords (gtrends(geo = c("CA"), category = 20)).
gtrendsR has been almost re-written form scratch. One big visible change is that signing into a Google account is no longer required to download data from Google Trends.Added missing all DMAs within the US (#146).
gtrendsR now correctly use the hl (local) parameter to retrieve data (@antaldaniel).
Better support for queries using non-ascii keywords (gtrends("österreich")).
Added some missing country codes (#94). data("countries").
Now able to specify for which Google products the request is performed using the gprop parameter (#112). Possible values are froogle for Google shopping, new for Google news, youtube for YouTube videos and images for Google images.
Now able to query using Google categories ?gtrends (#89).
Returned data is now tidy (#110). The trend object now contains keyword, hits and location header (head(sport_trend$trend)).
Fixing a bug where overriding countries variable was breaking package's functionalities (#109).
Correct default fallback for querying for google.user and google.password in gconnect (#121)
Fixing login issue due to backend changes made by Google (#103). Thanks to @MrLoh for initial implementation and suggestions.
Fixing crash occurring when monthly data was returned (#81).
gtrends() will throw a warning if data is returned monthly (#80).
gtrends() is now correctly detecting when quota limit is reached (#90).
A ggplot2 object can now be returned for further customization. plot(gtrends("NHL")) + ggtitle("NHL trend") + theme(legend.position="none")
Support for hourly and daily data (#67). For example, it is now possible to have hourly data for the last seven days with gtrends("nhl", geo = "CA", res = "7d"). Use ?gtrends for more information about the time resolution supported by the package.
Support for categories (#46). Ex.: gtrends("NHL", geo = "US", cat = "0-20") will search only in the sport category.
Some countries (ex: Hong Kong) were missing from the list (#69).
Various typos and documentation work.
Added support for sub-countries (#25). Ex.: gtrends("NHL", geo = "CA-QC") will return trends data for Québec province in Canada. The list of supported sub-countries can be obtained via data(countries).
Data parsing should work for any data returned by Google Trends (i.e. countries independent).
Better support for queries using keywords in different languages (#50, #57). Ex.: gtrends("蘋果", geo = "TW")
Now able to specify up to five countries (#53) via gtrends("NHL", geo = c("CA", "US"))
Fixing issue #51 allowing UK-based queries via geo = "GB"
gtrends("montréal").