dose_freq_lookup {admiral} | R Documentation |

## Pre-Defined Dose Frequencies

### Description

These pre-defined dose frequencies are sourced from
CDISC. The
number of rows to generate using `create_single_dose_dataset()`

arguments
`start_date`

and `end_date`

is derived from `DOSE_COUNT`

, `DOSE_WINDOW`

, and
`CONVERSION_FACTOR`

with appropriate functions from `lubridate`

.

### Usage

```
dose_freq_lookup
```

### Format

An object of class `tbl_df`

(inherits from `tbl`

, `data.frame`

) with 86 rows and 5 columns.

### Details

`NCI_CODE`

and `CDISC_VALUE`

are included from the CDISC source for
traceability.

`DOSE_COUNT`

represents the number of doses received in one single unit of
`DOSE_WINDOW`

. For example, for `CDISC_VALUE=="10 DAYS PER MONTH"`

,
`DOSE_WINDOW=="MONTH"`

and `DOSE_COUNT==10`

. Similarly, for
`CDISC_VALUE=="EVERY 2 WEEKS"`

, `DOSE_WINDOW=="WEEK"`

and
`DOSE_COUNT==0.5`

(to yield one dose every two weeks).

`CONVERSION_FACTOR`

is used to convert `DOSE_WINDOW`

units `"WEEK"`

,
`"MONTH"`

, and `"YEAR"`

to the unit `"DAY"`

.

For example, for `CDISC_VALUE=="10 DAYS PER MONTH"`

, `CONVERSION_FACTOR`

is `0.0329`

. One day of a month is assumed to be `1 / 30.4375`

of a month (one
day is assumed to be `1/365.25`

of a year).
Given only `start_date`

and `end_date`

in the aggregate dataset, `CONVERSION_FACTOR`

is used to calculate specific dates for`start_date`

and `end_date`

in the
resulting single dose dataset for the doses that occur. In such cases, doses
are assumed to occur at evenly spaced increments over the interval.

To see the entire table in the console, run `print(dose_freq_lookup)`

.

### See Also

`create_single_dose_dataset()`

[Package

*admiral* version 0.8.4

Index]