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Gets Factor Field Name (FLDNAME)

Source: R/utils.R
get_factor_fldname.Rd

This function is used to identify factor field name (FLDNAME) based on a data dictionary dataset DATADIC() from <https://adni.loni.usc.edu/data-samples/adni-data/>.

Usage

get_factor_fldname(.datadic, tbl_name, dd_fldnames = NULL)

Arguments

.datadic

Data dictionary dataset that generated using get_factor_levels_datadict()

tbl_name

Table name

dd_fldnames

Variable names in the actual dataset, Default = NULL.

Value

A character vector of variable names.

See also

get_factor_levels_datadict() DATADIC()

Other data dictionary related functions: extract_codelist_datadict(), get_factor_levels_datadict()

Examples

if (FALSE) { # \dontrun{
data_dict_dd <- get_factor_levels_datadict(
  .datadic = ADNIMERGE2::DATADIC,
  tbl_name = NULL,
  nested_value = TRUE
)
# List of available factor columns in data dictionary
# \code{\link{DATADIC}()} for the \code{\link{ADAS_ADNIGO23}()} dataset
get_factor_fldname(
  .datadic = data_dict_dd,
  tbl_name = "ADAS",
  dd_fldnames = NULL
)
# List of factor columns that available in \code{\link{ADAS_ADNIGO23}()} and data dictionary DATADIC
get_factor_fldname(
  .datadic = data_dict_dd,
  tbl_name = "ADAS",
  dd_fldnames = colnames(ADNIMERGE2::ADAS_ADNIGO23)
)
} # }