* NA in R source code block
@ 2018-03-29 11:35 Vikas Rawal
2018-03-31 6:47 ` Jeremie Juste
0 siblings, 1 reply; 5+ messages in thread
From: Vikas Rawal @ 2018-03-29 11:35 UTC (permalink / raw)
To: org-mode mailing list
NAs in a data frame that is created by an R source code block show up in the results as nil. Can I change it to something else (say, “—“)?
Vikas
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: NA in R source code block
2018-03-29 11:35 NA in R source code block Vikas Rawal
@ 2018-03-31 6:47 ` Jeremie Juste
2018-03-31 7:57 ` Vikas Rawal
0 siblings, 1 reply; 5+ messages in thread
From: Jeremie Juste @ 2018-03-31 6:47 UTC (permalink / raw)
To: Vikas Rawal; +Cc: org-mode mailing list
Vikas Rawal <vikaslists@agrarianresearch.org> writes:
Hello,
> NAs in a data frame that is created by an R source code block show up in the results as nil. Can I change it to something else (say, “—“)?
Could you elaborate on your issue? Can you give a minimal example of
your block? It is very difficult to help with the information you gave.
Best regards,
Jeremie
PS: feel free to say Hi :-)
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: NA in R source code block
2018-03-31 6:47 ` Jeremie Juste
@ 2018-03-31 7:57 ` Vikas Rawal
2018-03-31 12:37 ` Jeremie Juste
0 siblings, 1 reply; 5+ messages in thread
From: Vikas Rawal @ 2018-03-31 7:57 UTC (permalink / raw)
To: Jeremie Juste, org-mode mailing list
>
>> NAs in a data frame that is created by an R source code block show up in the results as nil. Can I change it to something else (say, “—“)?
>
> Could you elaborate on your issue? Can you give a minimal example of
> your block? It is very difficult to help with the information you gave.
>
Hi and Greetings! And apologies if my previous mail sounded rude. That was surely not my intent.
Here is an example. The NA in column a shows up in the results as nil. Why does that happen? Is there a way of changing this behaviour? I can manually replace NA with something else, but doing that in each code block is a pain. Since I wrote my first mail, I have written an export filter that filters out each “nil” at the time of export and replaces it with a “---“. But that is not perhaps the most efficient way of doing it.
Warmly,
Vikas
-----------
#+NAME: test
#+BEGIN_SRC R :results value :exports results :colnames yes :hline yes
data.frame(a=c(1,2,NA),b=c("john","dan","marco"))
#+END_SRC
#+RESULTS: test
| a | b |
|-----+-------|
| 1 | john |
| 2 | dan |
| nil | marco |
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: NA in R source code block
2018-03-31 7:57 ` Vikas Rawal
@ 2018-03-31 12:37 ` Jeremie Juste
2018-03-31 12:43 ` Vikas Rawal
0 siblings, 1 reply; 5+ messages in thread
From: Jeremie Juste @ 2018-03-31 12:37 UTC (permalink / raw)
To: Vikas Rawal; +Cc: org-mode mailing list
Hello,
I don't have an ideal org-mode solution for this problem. I suggesting
two ways hoping that more improvements will come
> Here is an example. The NA in column a shows up in the results as
> nil. Why does that happen? Is there a way of changing this behaviour?
> I can manually replace NA with something else, but doing that in each
> code block is a pain. Since I wrote my first mail, I have written an
> export filter that filters out each “nil” at the time of export and
> replaces it with a “---“. But that is not perhaps the most efficient
> way of doing it.
>
> Warmly,
>
> Vikas
>
> -----------
>
> #+NAME: test
> #+BEGIN_SRC R :results value :exports results :colnames yes :hline yes
>
>
> data.frame(a=c(1,2,NA),b=c("john","dan","marco"))
>
> #+END_SRC
>
> #+RESULTS: test
> | a | b |
>
> |-----+-------|
> | 1 | john |
> | 2 | dan |
> | nil | marco |
## Some suggestions
### Solution 1
You could use an elisp function to clear the nil. It is not automatic
and you would have to write a formula for every column but it might
still be better changing them manually.
I don't know how to implement it automatically though.
#+BEGIN_SRC_elisp
(defun removenil (x)
(interactive)
(replace-regexp-in-string "nil" "" x))
#+END_SRC
#+NAME: test
#+BEGIN_SRC R :results value :exports results :colnames yes :hline yes :dir /tmp :session R-test1
data.frame(a=c(1,2,NA),b=c("john","dan","marco"))
#+END_SRC
#+RESULTS: test
| a | b |
|---+-------|
| 1 | john |
| 2 | dan |
| | marco |
#+TBLFM: $1='(removenil $1);
### Solution 2
You could easily replace the NA in R before output. For instance
#+NAME: test2
#+BEGIN_SRC R :results value :exports results :colnames yes :hline yes :dir /tmp :session R-test1
NA_rep <- function(dt,rep="") {
dt[is.na(dt)] <- rep
return(dt)
}
NA_rep(data.frame(a=c(1,2,NA),b=c("john","dan","marco")))
#+END_SRC
#+RESULTS: test2
| a | b |
|---+-------|
| 1 | john |
| 2 | dan |
| | marco |
Best regards,
Jeremie
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: NA in R source code block
2018-03-31 12:37 ` Jeremie Juste
@ 2018-03-31 12:43 ` Vikas Rawal
0 siblings, 0 replies; 5+ messages in thread
From: Vikas Rawal @ 2018-03-31 12:43 UTC (permalink / raw)
To: Jeremie Juste; +Cc: org-mode mailing list
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>
> ### Solution 1
>
> You could use an elisp function to clear the nil. It is not automatic
> and you would have to write a formula for every column but it might
> still be better changing them manually.
>
> I don't know how to implement it automatically though.
>
> #+BEGIN_SRC_elisp
> (defun removenil (x)
> (interactive)
> (replace-regexp-in-string "nil" "" x))
> #+END_SRC
>
I created this export filter which uses something similar but automatically replaces nil with --- on all my documents:
(defun org-export-blanks-filter-latex (row backend info)
"Replace nil in table with --- in LaTeX export."
(when (org-export-derived-backend-p backend 'latex)
(replace-regexp-in-string "nil" "---" row)))
(add-to-list 'org-export-filter-table-row-functions
'org-export-blanks-filter-latex)
> #+NAME: test2
> #+BEGIN_SRC R :results value :exports results :colnames yes :hline yes :dir /tmp :session R-test1
> NA_rep <- function(dt,rep="") {
> dt[is.na(dt)] <- rep
> return(dt)
> }
> NA_rep(data.frame(a=c(1,2,NA),b=c("john","dan","marco")))
> #+END_SRC
>
This gets more painful if I want to use something like “—“ in numeric columns.
The first approach/export filter is less painful than this.
Thanks,
Vikas
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2018-03-29 11:35 NA in R source code block Vikas Rawal
2018-03-31 6:47 ` Jeremie Juste
2018-03-31 7:57 ` Vikas Rawal
2018-03-31 12:37 ` Jeremie Juste
2018-03-31 12:43 ` Vikas Rawal
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