Feature request #12250
Ability to load R packages and easily execute custom R scripts without Python code
| Status: | Closed | ||
|---|---|---|---|
| Priority: | Normal | ||
| Assignee: |  Victor Olaya | ||
| Category: | Processing/Core | ||
| Pull Request or Patch supplied: | No | Resolution: | fixed/implemented |
| Easy fix?: | No | Copied to github as #: | 20435 |
Description
In an answer to a question posted (http://gis.stackexchange.com/questions/75320/is-it-possible-to-create-and-run-custom-r-scripts-in-qgis-2-0?s=5|1.4552) at the GIS Stack Exchange, Guillermo Olmedo posted a link to his Python scripts with R code (saved as .rsx files).
Instead of .rxs files, I would like the ability to load custom R scripts as .R files without any Python code. I would like the ability to load any installed R package (or download R packages if not already installed and then load) into QGIS when executing a custom R script as well.
Thank you.
simple_R_script_fail.txt 
- Log of simple R script processed by SEXTANTE
(3.09 KB)
simple.rsx - simple R script (598 Bytes)
History
#1
Updated by Irucka Embry over 10 years ago
Hi, would it be possible to use rpy2 (http://rpy.sourceforge.net/) to have the interface to R?
I know that SageMath (http://www.sagemath.org/) includes a working environment for R and it's also Python-based.
Thank you.
#2
Updated by Giovanni Manghi over 10 years ago
Irucka Embry wrote:
Hi, would it be possible to use rpy2 (http://rpy.sourceforge.net/) to have the interface to R?
I know that SageMath (http://www.sagemath.org/) includes a working environment for R and it's also Python-based.
Thank you.
We had plugins in the past that worked on top of rpy(2) and they were all a bit painful to use and maintain, and if fact they stopped to be maintained. R is now integrated in QGIS via the Processing toolbox, there you can run any R script.
#3
Updated by Irucka Embry over 10 years ago
- File simple.rsx added
- File simple_R_script_fail.txt added
Thank you for your note about the ability to run any R scripts from QGIS. I originally posted this feature request because I still have yet to be able to use any of my own R scripts in the SEXTANTE Processing Toolbox. I am using QGIS 2.8.1 on Trisquel 7.0, which is based off of Ubuntu Trusty. I have also tried in previous versions of QGIS with no success. I have attached the simple R script and the log output from the SEXTANTE Processing Toolbox. I attempted to run the script in the custom script window of the Toolbox.
Since rpy(2) was a horrible experience maybe using pyRServe could serve as a better interface to R and to the existing libraries installed on the computer. I performed some more research today on connecting Python/QGIS and R and the following 3 links are possibilities for making the R accessibility better:
1) https://pythonhosted.org/pyRserve/index.html
pyRServe is a library for connecting Python to an R process running under Rserve. Through such a connection variables can be get and set in R from Python, and also R-functions can be called remotely.
2) http://www.rforge.net/Rserve/
Rserve
3) http://stackoverflow.com/questions/11716923/python-interface-for-r-programming-language
Python interface for R Programming Language - Stack Overflow
Thank you.
#4
Updated by Alexander Bruy almost 10 years ago
- Resolution set to fixed/implemented
- Tag deleted (
R, statistics, scripts, packages) - Status changed from Open to Closed
If I'm not wrong, Processing allow you to add scripts in pure R. Reopen if necessary
#5
Updated by Irucka Embry almost 10 years ago
Processing does not allow scripts to be created in pure R. Here is an example from the scatterplot regressione script (only the last 2 lines are R commands):
##My scripts=group
##showplots
##Layer=vector
##X=Field Layer
##Y=Field Layer
##Title=string
plot(LayerX, LayerY, xlab=X, ylab=Y, main=Title)+
abline(lm(LayerY~LayerX))
Thank you.
Irucka Embry
#6
Updated by Giovanni Manghi over 8 years ago
- Easy fix? set to No
#7
Updated by Giovanni Manghi over 8 years ago
Some providers are being removed from QGIS/Processing (will be available as plugin) and so are their categories in the bug tracker. To not leave them orphaned of a category they are being reassigned to processing/core.
#8
Updated by Giovanni Manghi over 8 years ago
- Category changed from 124 to Processing/Core