# SDTM Data Transformation Engine

## Documentation for package ‘sdtm.oak’ version 0.2.0

- DESCRIPTION file.
- User guides, package vignettes and other documentation.
- Package NEWS.

## Help Pages

%.>% | Explicit Dot Pipe
assign | Derive an SDTM variable
assign_ct | Derive an SDTM variable
assign_datetime | Derive an ISO8601 date-time variable
assign_no_ct | Derive an SDTM variable
cal_min_max_date | Calculate minimum and maximum date and time in the data frame
condition_add | Add filtering tags to a data set
create_iso8601 | Convert date or time collected values to ISO 8601
ctl_new_rowid_pillar.cnd_df | Conditioned tibble pillar print method
ct_map | Recode according to controlled terminology
ct_spec_example | Find the path to an example controlled terminology file
derive_blfl | Derive Baseline Flag or Last Observation Before Exposure Flag
derive_seq | Derive the sequence number ('-SEQ') variable
derive_study_day | 'derive_study_day' performs study day calculation
domain_example | Find the path to an example SDTM domain file
dtc_formats | Date/time collection formats
fmt_cmp | Regexps for date/time format components
generate_oak_id_vars | A function to generate oak_id_vars
generate_sdtm_supp | Function to generate final SDTM domain and supplemental domain SUPP-
harcode | Derive an SDTM variable with a hardcoded value
hardcode_ct | Derive an SDTM variable with a hardcoded value
hardcode_no_ct | Derive an SDTM variable with a hardcoded value
mutate.cnd_df | Mutate method for conditioned data frames
oak_cal_ref_dates | Calculate Reference dates in ISO8601 character format.
oak_id_vars | Raw dataset keys
problems | Retrieve date/time parsing problems
read_ct_spec | Read in a controlled terminology
read_ct_spec_example | Read an example controlled terminology specification
read_domain_example | Read an example SDTM domain
sbj_vars | Subject-level key variables
tbl_sum.cnd_df | Conditioned tibble header print method