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Derivations for Adding Variables

All ADaMs

derive_var_extreme_flag()
Add a Variable Flagging the First or Last Observation Within Each By Group
derive_var_joined_exist_flag()
Derives a Flag Based on an Existing Flag
derive_var_merged_ef_msrc()
Merge an Existence Flag From Multiple Sources
derive_var_merged_exist_flag()
Merge an Existence Flag
derive_var_merged_summary()
Merge Summary Variables
derive_var_obs_number()
Adds a Variable Numbering the Observations Within Each By Group
derive_var_relative_flag()
Flag Observations Before or After a Condition is Fulfilled
derive_var_trtdurd()
Derive Total Treatment Duration (Days)
derive_vars_cat()
Derive Categorization Variables Like AVALCATy and AVALCAyN
derive_vars_computed()
Adds Variable(s) Computed from the Analysis Value of one or more Parameters
derive_vars_dt()
Derive/Impute a Date from a Date Character Vector
derive_vars_dtm()
Derive/Impute a Datetime from a Date Character Vector
derive_vars_dtm_to_dt()
Derive Date Variables from Datetime Variables
derive_vars_dtm_to_tm()
Derive Time Variables from Datetime Variables
derive_vars_duration()
Derive Duration
derive_vars_dy()
Derive Relative Day Variables
derive_vars_joined()
Add Variables from an Additional Dataset Based on Conditions from Both Datasets
derive_vars_merged()
Add New Variable(s) to the Input Dataset Based on Variables from Another Dataset
derive_vars_merged_lookup()
Merge Lookup Table with Source Dataset
derive_vars_transposed()
Derive Variables by Transposing and Merging a Second Dataset

ADSL-specific

Derivation functions helpful for building the ADSL dataset

derive_var_age_years()
Derive Age in Years
derive_vars_aage()
Derive Analysis Age
derive_vars_extreme_event()
Add the Worst or Best Observation for Each By Group as New Variables
derive_vars_period()
Add Subperiod, Period, or Phase Variables to ADSL

BDS-specific

Derivation functions helpful for building the BDS datasets (e.g. advs, adlb, adeg, adex)

derive_basetype_records()
Derive Basetype Variable
derive_var_analysis_ratio()
Derive Ratio Variable
derive_var_anrind()
Derive Reference Range Indicator
derive_var_atoxgr()
Derive Lab High toxicity Grade 0 - 4 and Low Toxicity Grades 0 - (-4)
derive_var_atoxgr_dir()
Derive Lab Toxicity Grade 0 - 4
derive_var_base()
Derive Baseline Variables
derive_var_chg()
Derive Change from Baseline
derive_var_ontrtfl()
Derive On-Treatment Flag Variable
derive_var_pchg()
Derive Percent Change from Baseline
derive_var_shift()
Derive Shift
derive_vars_crit_flag()
Derive Criterion Flag Variables CRITy, CRITyFL, and CRITyFLN

OCCDS-specific

Derivation functions helpful for building the OCCDS datasets (e.g. adae, adcm, admh)

derive_var_trtemfl()
Derive Treatment-emergent Flag
derive_vars_atc()
Derive ATC Class Variables
derive_vars_query()
Derive Query Variables
get_terms_from_db()
Get Terms from the Queries Database

Derivations for Adding Parameters/Records

BDS-specific

default_qtc_paramcd()
Get Default Parameter Code for Corrected QT
derive_expected_records()
Derive Expected Records
derive_extreme_event()
Add the Worst or Best Observation for Each By Group as New Records
derive_extreme_records()
Add the First or Last Observation for Each By Group as New Records
derive_locf_records()
Derive LOCF (Last Observation Carried Forward) Records
derive_param_bmi()
Adds a Parameter for BMI
derive_param_bsa()
Adds a Parameter for BSA (Body Surface Area) Using the Specified Method
derive_param_computed()
Adds a Parameter Computed from the Analysis Value of Other Parameters
derive_param_doseint()
Adds a Parameter for Dose Intensity
derive_param_exist_flag()
Add an Existence Flag Parameter
derive_param_exposure()
Add an Aggregated Parameter and Derive the Associated Start and End Dates
derive_param_framingham()
Adds a Parameter for Framingham Heart Study Cardiovascular Disease 10-Year Risk Score
derive_param_map()
Adds a Parameter for Mean Arterial Pressure
derive_param_qtc()
Adds a Parameter for Corrected QT (an ECG measurement)
derive_param_rr()
Adds a Parameter for Derived RR (an ECG measurement)
derive_param_wbc_abs()
Add a parameter for lab differentials converted to absolute values
derive_summary_records()
Add New Records Within By Groups Using Aggregation Functions

TTE-specific

derive_param_tte()
Derive a Time-to-Event Parameter

Metadata

Auxiliary datasets providing definitions as input for derivations, e.g. grading criteria or dose frequencies

atoxgr_criteria_ctcv4
Metadata Holding Grading Criteria for NCI-CTCAEv4
atoxgr_criteria_ctcv5
Metadata Holding Grading Criteria for NCI-CTCAEv5
atoxgr_criteria_daids
Metadata Holding Grading Criteria for DAIDs
country_code_lookup
Country Code Lookup
dose_freq_lookup
Pre-Defined Dose Frequencies

Example Datasets

You can run use_ad_template() to produce additional datasets

admiral_adlb
Lab Analysis Dataset
admiral_adsl
Subject Level Analysis Dataset
ex_single
Single Dose Exposure Dataset
example_qs
Example QS Dataset
queries
Queries Dataset
queries_mh
Queries MH Dataset

Advanced Functions

Admiral Options

get_admiral_option()
Get the Value of an Admiral Option
set_admiral_options()
Set the Value of Admiral Options

Higher Order

call_derivation()
Call a Single Derivation Multiple Times
derivation_slice()
Create a derivation_slice Object
restrict_derivation()
Execute a Derivation on a Subset of the Input Dataset
slice_derivation()
Execute a Derivation with Different Arguments for Subsets of the Input Dataset

Creating Auxiliary Datasets

consolidate_metadata()
Consolidate Multiple Meta Datasets Into a Single One
create_period_dataset()
Create a Reference Dataset for Subperiods, Periods, or Phases
create_query_data()
Creates a queries dataset as input dataset to the dataset_queries argument in derive_vars_query()
create_single_dose_dataset()
Create dataset of single doses

Source Objects

basket_select()
Create a basket_select object
censor_source()
Create a censor_source Object
event()
Create a event Object
event_joined()
Create a event_joined Object
event_source()
Create an event_source Object
flag_event()
Create a flag_event Object
query()
Create an query object
records_source()
Create a records_source Object
tte_source()
Create a tte_source Object
death_event lastalive_censor ae_event ae_ser_event ae_gr1_event ae_gr2_event ae_gr3_event ae_gr4_event ae_gr5_event ae_gr35_event ae_sev_event ae_wd_event
Pre-Defined Time-to-Event Source Objects

Other

list_tte_source_objects()
List all tte_source Objects Available in a Package
params()
Create a Set of Parameters

Computation Functions for Vectors

All ADaMs

compute_age_years()
Compute Age in Years
compute_dtf()
Derive the Date Imputation Flag
compute_duration()
Compute Duration
compute_tmf()
Derive the Time Imputation Flag
convert_date_to_dtm()
Convert a Date into a Datetime Object
convert_dtc_to_dt()
Convert a Date Character Vector into a Date Object
convert_dtc_to_dtm()
Convert a Date Character Vector into a Datetime Object
impute_dtc_dt()
Impute Partial Date Portion of a '--DTC' Variable
impute_dtc_dtm()
Impute Partial Date(-time) Portion of a '--DTC' Variable

BDS-specific

compute_bmi()
Compute Body Mass Index (BMI)
compute_bsa()
Compute Body Surface Area (BSA)
compute_egfr()
Compute Estimated Glomerular Filtration Rate (eGFR) for Kidney Function
compute_framingham()
Compute Framingham Heart Study Cardiovascular Disease 10-Year Risk Score
compute_map()
Compute Mean Arterial Pressure (MAP)
compute_qtc()
Compute Corrected QT
compute_qual_imputation()
Function to Impute Values When Qualifier Exists in Character Result
compute_qual_imputation_dec()
Compute Factor for Value Imputations When Character Value Contains < or >
compute_rr()
Compute RR Interval From Heart Rate
compute_scale()
Compute Scale Parameters

Utility Functions

Utilities for Formatting Observations

convert_blanks_to_na()
Convert Blank Strings Into NAs
convert_na_to_blanks()
Convert NAs Into Blank Strings
yn_to_numeric()
Map "Y" and "N" to Numeric Values

Utilities for Dataset Checking

get_duplicates_dataset()
Get Duplicate Records that Led to a Prior Error
get_many_to_one_dataset()
Get Many to One Values that Led to a Prior Error
get_one_to_many_dataset()
Get One to Many Values that Led to a Prior Error

Utilities used within Derivation Functions

call_user_fun()
Calls a Function Provided by the User
extract_unit()
Extract Unit From Parameter Description
get_flagged_records()
Create an Existence Flag
get_not_mapped()
Get list of records not mapped from the lookup table.
get_vars_query()
Get Query Variables

Utilities for Filtering Observations

count_vals()
Count Number of Observations Where a Variable Equals a Value
filter_exist()
Returns records that fit into existing by groups in a filtered source dataset
filter_extreme()
Filter the First or Last Observation for Each By Group
filter_joined()
Filter Observations Taking Other Observations into Account
filter_not_exist()
Returns records that don't fit into existing by groups in a filtered source dataset
filter_relative()
Filter the Observations Before or After a Condition is Fulfilled
max_cond()
Maximum Value on a Subset
min_cond()
Minimum Value on a Subset

Utilities for Quosures

chr2vars()
Turn a Character Vector into a List of Expressions
negate_vars()
Negate List of Variables

Utilities used for Examples and Template Scripts

list_all_templates()
List All Available ADaM Templates
use_ad_template()
Open an ADaM Template Script

Objects exported from other packages

To maximize the user-friendliness of admiral, functions from other packages are provided without changes made to them, follow the links below to see their documentation.

`%>%`
Pipe operator
desc
dplyr desc
exprs
rlang exprs

Superseded

Superseded functions have been replaced with better functions. However, we will not be removing these functions from admiral. We do strongly encourage you to make the switch over.

date_source() superseded
Create a date_source object
derive_param_extreme_record() superseded
Adds a Parameter Based on First or Last Record from Multiple Sources
derive_var_dthcaus() superseded
Derive Death Cause
derive_var_extreme_dt() superseded
Derive First or Last Date from Multiple Sources
derive_var_extreme_dtm() superseded
Derive First or Last Datetime from Multiple Sources
dthcaus_source() superseded
Create a dthcaus_source Object
get_summary_records() superseded
Create Summary Records