fieldToVar: Convert a REDCap Data Field to an R Vector

In redcapAPI: Interface to 'REDCap'

Convert a REDCap Data Field to an R Vector

Description

Converts a field exported from REDCap into a valid R vector

Usage

fieldToVar(
  records,
  meta_data,
  factors = TRUE,
  dates = TRUE,
  checkboxLabels = FALSE,
  labels = TRUE,
  handlers = list(),
  mChoice = NULL,
  ...
)

Arguments

records	A data frame of records returned by exportRecords or exportReports
meta_data	A data frame giving the data dictionary, as returned by exportMetaData
factors	Logical, determines if checkbox, radio button, dropdown and yesno variables are converted to factors
dates	Logical, determines if date variables are converted to POSIXct format
checkboxLabels	Logical, determines if checkbox variables are labeled as "Checked" or using the checkbox label. Only applicable when factors = TRUE
labels	Logical. Determines if the variable labels are applied to the data frame.
handlers	List, Specify type conversion overrides for specific REDCap field types. E.g., handlers=list(date_ = as.Date). For datetime specifications the datetime ordering directive from the tail is dropped. The following field types are supported: date_, datetime_, datetime_seconds_, time_mm_ss, time, float, number, calc, int, integer, select, radio, dropdown, yesno, truefalse, checkbox, and form_complete.
mChoice	logical; defaults to TRUE. Convert checkboxes to mChoice if Hmisc is installed.
...	additional arguments that are ignored.

Details

This function is called internally by exportRecords and exportReports. it is not available to the user.

redcapAPI documentation built on Oct. 17, 2024, 5:07 p.m.