[R] project path in Rmd (Ivan Calandra)

[Howard, Tim G (DEC)]

You also should be able to reference locations from the 'root' of your project using the here() package. 

https://here.r-lib.org/

Best, 
Tim Howard


> Date: Thu, 2 Apr 2020 10:21:47 +0100

> From: Rui Barradas <ruipbarradas using sapo.pt>

> To: Ivan Calandra <calandra using rgzm.de>

> Cc: "r-help using r-project.org" <r-help using r-project.org>

> Subject: Re: [R] project path in Rmd

> Message-ID: <09f30516-7af5-fee7-5efd-e6db69c75fb3 using sapo.pt>

> Content-Type: text/plain; charset="utf-8"; Format="flowed"

> 

> Hello,

> 

> This is not an answer to the original problem, it's about '..'. (And a

> bit more.)

> 

> About '..', see if the following sequence of instructions can help.

> Subdirectories '~/tmp' and '~/snap' exist on my PC, change to

> '~/analysis/scripts' or to what makes sense on yours.

> 

> od <- getwd()          # save this for later

> 

> setwd('~/tmp')         #

> list.files('../snap')  # goes up one level and

>                         # executes a SO/files related command

> curr <- getwd()

> basename(curr)         # these two instructions are meant to show that

> dirname(curr)          # you don't need to know how many levels you have

>                         # to go up, you can parse 'curr' if basename and

>                         # dirname are not enough

> 

> setwd(od)              # back to where I was

> 

> 

> Hope this helps,

> Rui Barradas

> Às 10:02 de 02/04/20, Ivan Calandra escreveu:

> I do not know this ".." command (could you please show me how to use it

> in a relative path?), but it sounds like a good start.

>

> But it implies that I know in advance how many folders up the parent

> directory is. I guess in most cases it will always be the same, but it

> would be even better if it could be applied generically.

>

> As I said, ideally, I would like to get the project directory from a

> script located in a subfolder.

>

> Thanks!

> Ivan

>

> --

> Dr. Ivan Calandra

> TraCEr, laboratory for Traceology and Controlled Experiments

> MONREPOS Archaeological Research Centre and

> Museum for Human Behavioural Evolution

> Schloss Monrepos

> 56567 Neuwied, Germany

> +49 (0) 2631 9772-243

> https://www.researchgate.net/profile/Ivan_Calandra

>

> On 02/04/2020 10:54, Ivan Krylov wrote:

>> On Thu, 2 Apr 2020 10:30:29 +0200

>> Ivan Calandra <calandra using rgzm.de> wrote:

>>

>>> The problem I then have is to specify the path for 'raw_data' and

>>> 'derived_data' <...> And these folders are not subfolders of

>>> the working directory '~/analysis/scripts'.

>>

>>> I would like to avoid absolute paths of course

>> Is there a reason to avoid relative paths built using '..' to access

>> parent directories?

>>

>