Unable to install isofor

[statslady]

Hi,
I am trying to install the package isofor using the following command. I am using Windows 10 Pro.
Here is the code I used to try to install from github.
library(devtools)
install_github("Zelazny7/isofor")

This is the error I am getting:-

install_github("Zelazny7/isofor")
Downloading GitHub repo Zelazny7/isofor@master
Installing 1 packages: Rcpp
trying URL 'https://cran.rstudio.com/bin/windows/contrib/3.5/Rcpp_1.0.1.zip'
Content type 'application/zip' length 4509148 bytes (4.3 MB)
downloaded 4.3 MB

package ‘Rcpp’ successfully unpacked and MD5 sums checked
Error: (converted from warning) cannot remove prior installation of package ‘Rcpp’

Please advise.
Thanks

[mkoohafkan]

this isn't an issue with isofor, it's an issue with Rcpp. Try closing all your R terminals, opening a fresh one (i.e. don't load a workspace) and install Rcpp using install.packages(). Once Rcpp is installed, try installing isofor again.

[turingF]

install_github(repo = "Zelazny7/isofor")
Error in nchar(object, type = "chars") :
invalid multibyte string, element 1

what's wrong?

[gravesee]

Try

install_github(repo = "Zelazny7/isofor", ref="cran")

[turingF]

install_github(repo = "Zelazny7/isofor",ref = "cran")
Error in nchar(object, type = "chars") :
invalid multibyte string, element 1

it's no use,I use another methods also donnt work:

githubinstall("isofor")
Suggestion:

• Zelazny7/isofor Isolation Forest implementation in R
  Do you want to install the package (Y/n)? Y
  Error in nchar(object, type = "chars") :
  invalid multibyte string, element 1
  In addition: Warning message:
  In fread(download_url, sep = "\t", header = FALSE, stringsAsFactors = FALSE, :
  Found and resolved improper quoting out-of-sample. First healed line 4848: <<Puriney honfleuR
  "Evening, honfleuR" by Seurat>>. If the fields are not quoted (e.g. field separator does not appear within
  any field), try quote="" to avoid this warning.

At end I choose to dl the ZIP file and import manually:
install.packages("D:/isofor-master.zip", repos = NULL, type = "win.binary")

the file cannot be discerned as a package.

So what should I do?

[gravesee]

You can't just download the repository and treat it like a binary package. Clone it, then run:

R CMD install isofor

From the parent directory of the repository. This assumes you have the R build tools installed.

[turingF]

$ R CMD INSTALL isofor-master

• installing to library 'C:/Program Files/R/R-3.6.0/library'
• installing source package 'isofor' ...
  ** using staged installation
  ** libs

*** arch - i386
Warning in system(cmd) : 'make' not found
ERROR: compilation failed for package 'isofor'

• removing 'C:/Program Files/R/R-3.6.0/library/isofor'

I don't know why it always has error:(

[gravesee]

You need to install r build tools