Unnest a COM(P)ADRE database by spreading the components of CompadreMat into separate list-columns

Unnests a CompadreDB object by spreading the components of CompadreMat into separate list-columns. Components that may be extracted include:

• matA (matrix)

• matU (matrix)

• matF (matrix)

• matC (matrix)

• MatrixClassAuthor (character vector)

• MatrixClassOrganized (character vector)

• MatrixClassNumber (integer vector)

cdb_unnest(
  cdb,
  components = c("matA", "matU", "matF", "matC", "MatrixClassAuthor",
    "MatrixClassOrganized", "MatrixClassNumber")
)

Arguments

cdb	A CompadreDB object
components	Character vector specifying which components to extract. Defaults to all, i.e. c("matA", "matU", "matF", "matC", "MatrixClassAuthor", "MatrixClassOrganized", "MatrixClassNumber")

Value

cdb with additional list-columns for each element of argument components

See also

Other data management: cdb_flatten(), cdb_id_stages(), cdb_id_studies(), cdb_id(), cdb_mean_matF(), cdb_rbind(), cdb_unflatten(), mpm_mean(), string_representation

Author

Patrick M. Barks <patrick.barks@gmail.com>

Examples

# unnest all components
CompadreUnnest <- cdb_unnest(Compadre)

# unnest select components (matU and MatrixClassAuthor)
CompadreUnnest <- cdb_unnest(Compadre, c("matU", "MatrixClassAuthor"))