Imputes Partial Date/Time SDTMv Variables — impute

Imputes partial date/time SDTMv variables, as required by the datacut process.

Usage

impute_sdtm(dsin, varin, varout)

Arguments

dsin: Name of input SDTMv dataframe
varin: Name of input SDTMv character date/time variable, which must be in ISO 8601 extended format (YYYY-MM-DDThh:mm:ss). The use of date/time intervals are not permitted.
varout: Name of imputed output variable

Value

Returns the input SDTMv dataframe, with the addition of one extra variable (varout) in POSIXct datetime format, which is the imputed version of varin.

Examples

ex <- data.frame(
  USUBJID = rep(c("UXYZ123a"), 13),
  EXSTDTC = c(
    "", "2022", "2022-06", "2022-06-23", "2022-06-23T16", "2022-06-23T16:57",
    "2022-06-23T16:57:30", "2022-06-23T16:57:30.123", "2022-06-23T16:-:30",
    "2022-06-23T-:57:30", "2022-06--T16:57:30", "2022---23T16:57:30", "--06-23T16:57:30"
  )
)
ex_imputed <- impute_sdtm(dsin = ex, varin = EXSTDTC, varout = DCUT_TEMP_EXSTDTC)