pathing: Set path to bertini

In dkahle/bertini: Interface to 'Bertini'

Set path to bertini

Description

These are helper functions that deal with pathing to bertini and asking if it is present. When the bertini package is loaded it attempts to find the bertini executable by looking for an environment variable indicating where it is, i.e. its path as specified in your .Renviron file.

Usage

set_bertini_path(path)

get_bertini_path()

has_bertini()

missing_bertini_stop()

Arguments

path	A character string, the path to theh bertini executable

Details

For easiest use, you'll want to specify the path the bertini executable in your ~/.Renviron file. It should look something like

BERTINI=/Applications/latte/bin

You can set this permanently with edit_r_environ(). Note that absolute paths should be specified, not relative paths, e.g. don't use ~/path/to/exe.

You can change this for the current session using set_bertini_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 [e-mail]

Examples

has_bertini()
if (has_bertini()) get_bertini_path()


# you can set this permanently with the following. note that you'll
# need to re-start the R session afterwards or simply pass the path into
# set_bertini_path(). see below for more details on that.
if (interactive()) edit_r_environ()


# you can change this in your current session with set_bertini_path() and
if (interactive()) set_bertini_path()

if (had_bertini <- has_bertini()) old_bertini_path <- get_bertini_path()
set_bertini_path("/path/to/bertini")
get_bertini_path()

if (had_bertini) set_bertini_path(old_bertini_path)
get_bertini_path()

dkahle/bertini documentation built on July 16, 2022, 9:26 a.m.