List Studies Available for Download — list_available

Returns a data frame of all clinical trial studies available as GitHub Release assets, along with their local cache status. Studies marked as cached = TRUE are already downloaded and available for use with connect_clinical_data() without an internet connection.

When GitHub is unreachable, the function falls back to the last successfully fetched listing (if available) and issues a warning. The cached column is always recomputed from the local filesystem.

Requires the piggyback package.

Usage

list_available_studies(repo = "Lovemore-Gakava/clinTrialData")

Arguments

repo: GitHub repository in the form "owner/repo". Defaults to the official clinTrialData release repository.

Value

A data frame with columns:

source: Study name (pass this to download_study() or connect_clinical_data())
version: Release tag the asset belongs to
size_mb: Asset size in megabytes
cached: TRUE if the study is already in the local cache

Examples

if (FALSE) { # \dontrun{
list_available_studies()
} # }