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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 entryThese binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.