[R] CentOS 8: installing R

Dear all, I seem to be having an impossible time install R on my centos 8 virtual machine (I know centos 8 is no longer maintained, but it is a work server so I have no choice in the matter.). I installed EPEL and enabled PowerTools, but I cannot install R due to conflicts in the requirements for

Re: [R] [External] Re: mpfr function in Rmpfr crashes R

a Mac M1. > The problem and potential solution is described here: > > https://stat.ethz.ch/pipermail/r-sig-mac/2021-February/014003.html > > > From: R-help on behalf of Duncan Murdoch < > murdoch.dun...@gmail.com> > Sent: Sunday,

[R] mpfr function in Rmpfr crashes R

All, The following code crashes by R on my mac with a message "R session aborted. A fatal error occured". ``` library(Rmpfr) Rmpfr::mpfr(pi, 120) ``` Does anyone have any suggestions? My session info is below: R version 4.0.3 (2020-10-10) Platform: x86_64-apple-darwin17.0 (64-bit) Running un

Re: [R] Looping through a dataframe

What you are asking is one area where the package data.table really shines. You didn't provide an example, but based on your question you would do something like: library(data.table) dt <- as.data.table(All_companies) dt[, .N, by=COMPANY_NAME] You will have to read up on data.table, but .N gives

[R] error when installing zoo package on macos: file 'DESCRIPTION' does not exist

I was able to upgrade to the latest version of the zoo package on my linux machine, but my mac is given an error message that the DESCRIPTION does not exist. I am sure that is not the real problem, but I don't know how to debug or figure out what the real problem is. The output is below and my se