redcap_project: A Reference Class to make later calls to REDCap more...

In REDCapR: Interaction Between R and REDCap

A Reference Class to make later calls to REDCap more convenient

Description

This Reference Class represents a REDCap project. Once some values are set that are specific to a REDCap project (such as the URI and token), later calls are less verbose (such as reading and writing data).

Fields

redcap_uri

The URI (uniform resource identifier) of the REDCap project. Required.

token

token The user-specific string that serves as the password for a project. Required.

Methods

read( batch_size = 100L, interbatch_delay = 0, records = NULL, records_collapsed = "", fields = NULL, fields_collapsed = "", forms = NULL, forms_collapsed = "", events = NULL, events_collapsed = "", raw_or_label = "raw", raw_or_label_headers = "raw", export_checkbox_label = FALSE, export_survey_fields = FALSE, export_data_access_groups = FALSE, filter_logic = "", guess_type = TRUE, guess_max = 1000L, verbose = TRUE, config_options = NULL )

Exports records from a REDCap project.

write( ds_to_write, batch_size = 100L, interbatch_delay = 0, continue_on_error = FALSE, verbose = TRUE, config_options = NULL )

Imports records to a REDCap project.

Examples

uri     <- "https://bbmc.ouhsc.edu/redcap/api/"
token   <- "D70F9ACD1EDD6F151C6EA78683944E98"
## Not run: 
project <- REDCapR::redcap_project$new(redcap_uri=uri, token=token)
ds_all  <- project$read()

# Demonstrate how repeated calls are more concise when the token and
#   url aren't always passed.
ds_skinny <- project$read(fields=c("record_id", "sex", "height"))$data

ids_of_males    <- ds_skinny$record_id[ds_skinny$sex==1]
ids_of_shorties <- ds_skinny$record_id[ds_skinny$height < 40]

ds_males        <- project$read(records=ids_of_males, batch_size=2)$data
ds_shorties     <- project$read(records=ids_of_shorties)$data

#Switch the Genders
sex_original   <- ds_skinny$sex
ds_skinny$sex  <- (1 - ds_skinny$sex)
project$write(ds_skinny)

#Switch the Genders back
ds_skinny$sex <- sex_original
project$write(ds_skinny)

## End(Not run)

REDCapR documentation built on Aug. 10, 2022, 5:06 p.m.