Delete experiment from database
References
Raasveldt M, Muehleisen H (2019). "DuckDB: an embeddable analytical database." Proceedings of the 2019 International Conference on Management of Data (SIGMOD). doi:10.1145/3299869.3320212
Examples
# DuckDB is an optional dependency; guard the example so it only runs
# when the package is installed.
if (requireNamespace("duckdb", quietly = TRUE)) {
tf <- tempfile(fileext = ".duckdb")
con <- connectDatabase(tf)
initPhysioSchema(con)
pe <- PhysioExperiment(
assays = list(raw = matrix(0, nrow = 100, ncol = 3)),
colData = S4Vectors::DataFrame(label = c("Fp1", "Fp2", "Cz")),
samplingRate = 256
)
registerExperiment(con, pe, experiment_id = "demo1", subject_id = "sub01")
# Remove the experiment and all related records
deleteExperiment(con, "demo1")
disconnectDatabase(con)
unlink(tf)
}
#> duckdb keeps downloaded extensions and secrets in a temporary directory:
#> ℹ /tmp/Rtmpa6DD5K/duckdb
#> This is removed when the R session ends.
#> • Extensions are re-downloaded each session.
#> • Secrets are lost.
#> ℹ Run duckdb(shared_home = TRUE) (or create ~/.duckdb) to keep them (suitable for most users).
#> ℹ Run duckdb(shared_home = FALSE) to accept the temporary directory (and silence this message).
#> ℹ See ?duckdb_storage for details and alternatives.