overall_status_lengths, a function that
interprets a downloaded data frame of historical versions and tallies up
the days that each clinical trial registry entry spent in each overall
status within the time frame specified.clinicaltrials_gov_dates, the function for
downloading overall status changes and the dates on which they occur to
allow for downloading many trials’ worth at a time.earliest argument to
clinicaltrials_gov_download to allow a user to specify that
they would like to download only the earliest version of a trial
recordlocations data downloadextract_publications to extract
publications by type from a data frame of downloaded versions into a new
data frame.latest to function
clinicaltrials_gov_download to allow downloading only the
latest version for many clinical trial registry entries–
cthist sometimes can’t connect to
ClinicalTrials.gov by replacing the statement that included
RCurl::url.exists() with one that uses
httr::http_error() insteadpolite dependency and functionalitypolite variable to allow disabling of “polite”
downloading for debugging purposes.data$n syntaxclinicaltrials_gov_version()
(citations, links and available IPD/Information) and
drks_de_version() (Trial Publications, Results and other
Documents)clinicaltrials_gov_download() and
drks_de_download() that the Internet resources are
available and fails gracefully in the case that they’re notstatus_change_only option to
clinicaltrials_gov_dates() function to allow for
downloading only the dates on which a trial’s Recruitment Status
changedcthist does not capture outcome measures
in versions posted after results are posted.polite R package to ensure that the sites’ rules
regarding scraping are observed, and to limit the number of
requestsclinicaltrials_gov_download() and
drks_de_download() now return a data frame of results if
output_filename is not specifiedclinicaltrials_gov_version() and
drks_de_version() now return named lists rather than
vectorsclinicaltrials_gov_version() and
drks_de_version()clinicaltrials_gov_version()li.deadline node, causing formatting errorsclinicaltrials_gov_version_dates to
clinicaltrials_gov_dates for brevityclinicaltrials_gov_version_data to
clinicaltrials_gov_version for brevitydrks_de_version_dates to
drks_de_dates for brevitydrks_de_version_data to
drks_de_version for brevityNEWS.md file to track changes to the
package.clinicaltrials_gov_version_dates to
download dates on which a ClinicalTrials.gov registry entry is
updatedclinicaltrials_gov_version_data to
download registry data for a specific historical version of a clinical
trial registry entry from ClinicalTrials.govclinicaltrials_gov_download to
mass-download all historical versions of a set of ClinicalTrials.gov
registry entrydrks_de_version_dates to download dates
on which a DRKS.de registry entry is updateddrks_de_version_data to download
registry data for a specific historical version of a clinical trial
registry entry from DRKS.dedrks_de_download to mass-download all
historical versions of a set of DRKS.de registry entry