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