View source: R/reviewInvalidRecords.R
reviewInvalidRecords | R Documentation |
This function retrieves a summary of data elements that failed validation during field validation and casting.
reviewInvalidRecords(data, quiet = TRUE)
data |
|
quiet |
|
When discussing field validation and invalid data, it is helpful to establish the following terminology:
A Records data frame is a data frame returned by a function where the fields (columns) in the data frame have been cast for subsequent analysis.
Some casting function also perform field validation and return an Invalid data frame, which is a listing of data elements that have failed validation. The Invalid data frame is attached as an attribute to the Records data frame. If no data elements fail the validation, the Invalid data frame will have zero rows. If at least one data element fails validation, a warning is printed to notify the user so that the user may review the Invalid data frame and mitigate the failed validations.
The Invalid data frame has an additional class (c("invalid", "data.frame")
)
and comes with a print method. The print.invalid
method displays the
content of the Invalid data frame neatly in both the console
and within reports utilizing markdown.
If data
has the "invalid"
attribute, an object with class
c("invalid", "data.frame")
is returned. (NULL
will be returned if
data
does not have the attribute).
The colums in the Invalid data frame are
row | The row number from the Records data frame for which validation failed. |
record_id | The record ID for the failed validation. |
field_name | The field name (column) of the failed validation. |
field_type | The field type of the failed validation. |
value | The original value that failed validation. It will be replaced with NA in the Records data. |
The Invalid data frame has additional attributes
time
- The date/time at which the validation was performed.
version
- The REDCap version number (as retrieved by exportVersion
).
project
- The title of the REDCap project (as retrieved by exportProjectInformation
).
exportRecordsTyped()
,
exportReportsTyped()
,
castForImport()
,
guessCast()
## Not run:
unlockREDCap(connections = c(rcon = "project_alias"),
url = "your_redcap_url",
keyring = "API_KEYs",
envir = globalenv())
# Review the Invalid data frame after export
Records <- exportRecordsTyped(rcon)
reviewInvalidRecords(Records)
# Review Invalid data frame before import
Records <- castForImport(rcon)
reviewInvalidRecords(Records)
# Access the Invalid data frame the attributes
Records <- exportRecordsTyped(rcon)
attr(Records, "invalid")
attributes(Records)$invalid
## End(Not run)
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