pathing {latte} | R Documentation |
Set paths to LattE and 4ti2 executables
Description
These are helper functions that deal with pathing to external programs and
asking if they are present. When latte is loaded it attempts to find LattE
and 4ti2 executables by looking for environment variables specifying them,
i.e. their paths as specified in your .Renviron
file.
Usage
set_latte_path(path)
set_4ti2_path(path)
get_4ti2_path()
get_latte_path()
has_4ti2()
has_latte()
missing_4ti2_stop()
missing_latte_stop()
Arguments
path |
A character string, the path to a 4ti2 function (e.g. |
Details
For easiest use, you'll want to specify the paths of LattE and 4ti2
executables in your ~/.Renviron
file. They should look something like
LATTE=/Applications/latte/bin
FOURTITWO=/Applications/latte/bin
You can set these permanently with usethis::edit_r_environ()
.
You can change these for the current session using, e.g., set_latte_path()
,
which accepts a character string or, if missing, uses file.choose()
to let
you interactively; you just select an arbitrary executable.
Value
A logical(1) or character(1) containing the path.
Author(s)
David Kahle david@kahle.io
Examples
has_4ti2()
if (has_4ti2()) get_4ti2_path()
has_latte()
if (has_4ti2()) get_latte_path()
# you can set these paths permanently with the following. note that you'll
# need to re-start the R session afterwards or simply pass the path into,
# e.g., set_latte_path(). see below for more details on that.
if (interactive()) edit_r_environ()
# you can change these in your current session with set_latte_path() and
if (had_latte <- has_latte()) old_latte_path <- get_latte_path()
set_latte_path("/path/to/latte")
get_latte_path()
if (had_latte) set_latte_path(old_latte_path)
get_latte_path()