how to get GitHub R package ?

[amare]

Hello Dears,
I was trying to download a GitHab R package located at https://github.com/Zhangxf-ccnu/DiffGraph
but unfortunately I could not mange to do so. It would a great help if some could give me some tips to how to download and install to my R studio. Here below is the code I tried and warnings message.

Thank you so much for your help!

> library(devtools)
>  ulr = "https://github.com/Zhangxf-ccnu/DiffGraph"
> download.packages(pkgs = "DiffGraph",destdir = getwd(),
>                  repos = ulr, type = "source",
>                     method =  "internal")
> 
> 
> Warning: unable to access index for repository https://github.com/Zhangxf-ccnu/DiffGraph/src/contrib:
>   scheme not supported in URL 'https://github.com/Zhangxf-ccnu/DiffGraph/src/contrib/PACKAGES'
> Warning in download.packages(pkgs = "DiffGraph", destdir = getwd(), repos = ulr,  :
>   no package ‘DiffGraph’ at

[nirgrahamuk]

The url you linked contains the following instructions:

Install the DiffGraph pacakge:
Download the package source from GitHub - Zhangxf-ccnu/DiffGraph: v1
and then install the package using the following command:

install.packages("path/DiffGraph_1.1.1.tar.gz", type = "source")

where "path" is the path where the "DiffGraph_1.1.1.tar.gz" is located.

[amare]

I have download and saved to my working directory and did the installation as follow.

install.packages("D:/Users/AB/Documents/ab/DiffGraph_1.1.1.tar.gz", type = "source")

However still getting this warning

Warning in install.packages :

  package ‘D:/Users/AB/Documents/ab/DiffGraph_1.1.1.tar.gz’ is not available for this version of R
A version of this package for your version of R might be available elsewhere,
see the ideas at https://cran.r-project.org/doc/manuals/r-patched/R-admin.html#Installing-packages

[nirgrahamuk]

what version of R are you using? any idea what version of R this package might want?

[amare]

I am now using the new R version (4.0.3). However, I also tried it with R version 4.0.2. The problem is the same. I am not sure what version is suitable for this package and haven't seen any specifications.

[nirgrahamuk]

Since development of this package seems to have stalled back in 2017 maybe you can identify what version of r was current for the time and try that.

[amare]

Thanks for the help. However, if I can ask one more time on this.
I followed different approach from my earlier post. The code is below.

install.packages("devtools")
library("devtools")
install_github("Zhangxf-ccnu/DiffGraph", subdir="pkg")

However, got the following error. This could be with my R or computer setting.
Can you one more time comment what is this error mean please?
Thanks!

Error: Failed to install 'DiffGraph' from GitHub:
  System command 'Rcmd.exe' failed, exit status: -1, stdout + stderr empty

[nirgrahamuk]

I dont think the package developer set up their package to work with that.. thats why they wrote manual.install instructions...

[mkulkarni]

Go to your Temp directory,
Remove prior downloaded package

and reinstall using

 devtools::install_github("rich-iannone/DiagrammeR")