Script_Generator"
In chevron: Standard TLGs for Clinical Trials Reporting

knitr::opts_chunk$set(
  collapse = TRUE,
  comment = "#>"
)

library(chevron)
library(dplyr)

Introduction

In addition of the embedded run() method to create a tlg, chevron offers a script-based approach that allows the user to quickly edit a chevron workflow without the need for modifying a chevron_tlg object. The script is generated from script_funs method which by default only output the script corresponding to the preprocessing function in the generated script.

Using a chevron-defined object

The object returned by the script methods are vectors of character with one element per line of the script, that can be easily rendered.

res <- script_funs(aet01, adam_db = "syn_data", args = "args_list")
writeLines(res)

With a modified chevron object

The script generator depends on the functions actually stored in the object. Modifying the chevron_tlg object can lead to a different script.

aet01_custom <- aet01
preprocess(aet01_custom) <- function(adam_db, new_format, ...) {
  reformat(adam_db, new_format)
}

res_funs <- script_funs(aet01_custom, adam_db = "syn_data", args = "args_list")