Paths in knitr

Fri, Jun 9, 2017 11:53 AM

I'd say it is an expert-only option. If you do not understand what it
means, I strongly recommend you not to set it.

Similarly, you set the root_dir option and I don't know why you did it, but
it is a typo anyway (should be root.dir).

Regards,
Yihui
--
https://yihui.name

On Fri, Jun 9, 2017 at 4:50 AM, <G.Maubach at gmx.de> wrote:

Hi Yi,

many thanks for your reply.

Why I do have to se the base.dir option? Cause, to me it is not clear from
the documentation, where knitr looks for data files and how I can adjust
knitr to tell it where to look. base.dir was a try, but did not work.

Can you give me a hint where I can find information/documentation on this
path issue?

Kind regards

Georg

Gesendet: Donnerstag, 08. Juni 2017 um 15:05 Uhr
Von: "Yihui Xie" <xie at yihui.name>
An: G.Maubach at weinwolf.de
Cc: "R Help" <r-help at r-project.org>
Betreff: Re: [R] Paths in knitr

Why do you have to set the base.dir option?

Regards,
Yihui
--
https://yihui.name


On Thu, Jun 8, 2017 at 6:15 AM,  <G.Maubach at weinwolf.de> wrote:

Hi All,

I have to compile a report for the management and decided to use

RMarkdown

and knitr. I compiled all needed plots (using separate R scripts)

before

compiling the report, thus all plots reside in my graphics directory.

The

RMarkdown report needs to access these files. I have defined

```{r setup, include = FALSE}
knitr::opts_knit$set(
  echo = FALSE,
  xtable.type = "html",
  base.dir = "H:/2017/Analysen/Kundenzufriedenheit/Auswertung",
  root_dir = "H:/2017/Analysen/Kundenzufriedenheit/Auswertung",
  fig.path = "results/graphics")  # relative path required, see
http://yihui.name/knitr/options
```

and then referenced my plot using

<img src = "email_distribution_pie.png"></img>

because I want to be able to customize the plotting attributes.

But that fails with the message "pandoc.exe: Could not fetch
email_distribution_pie.png".

If I give it the absolute path
"H:/2017/Analysen/Kundenzufriedenheit/Auswertung/results/

graphics/email_distribution_pie.png"

it works fine as well if I copy the plot into the directory where the
report.RMD file resides.

How can I tell knitr to fetch the ready-made plots from the graphics
directory?

Kind regards

Georg