drake (version 5.2.1)

deps: Deprecated. List the dependencies of a function, workflow plan command, or knitr report source file.

Description

Deprecated. Use deps_code() or deps_targets() instead. These functions are intended for debugging and checking your project. The dependency structure of the components of your analysis decides which targets are built and when.

Usage

deps(x)

Arguments

x

Either a function or a string. Strings are commands from your workflow plan data frame.

Value

A character vector, names of dependencies. Files wrapped in single quotes. The other names listed are functions or generic R objects.

Details

If the argument is a knitr report (for example, file_store("report.Rmd") or "\"report.Rmd\"") the the dependencies of the expected compiled output will be given. For example, deps(file_store("report.Rmd")) will return target names found in calls to loadd() and readd() in active code chunks. These loadd()/readd() targets are needed in order to run knit(knitr_in("report.Rmd")) to produce the output file "report.md", so technically, they are dependencies of "report.md", not "report.Rmd".

The file_store() function alerts drake utility functions to file names by enclosing them in literal double quotes. (For example, file_store("report.Rmd") is just "\"report.Rmd\"".)

Drake takes special precautions so that a target/import does not depend on itself. For example, deps(f)`` might return"f"iff()` is a recursive function, but make() just ignores this conflict and runs as expected. In other words, make() automatically removes all self-referential loops in the dependency network.

Examples

# NOT RUN {
# See deps_code() for examples.
# }