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r-project

By Greg Nowak, 14 March, 2021

R XML2

R-Project can be used to parse, build and validate XML files. The xml2 R library is the latest xml parsing library and should be used instead of the outdated xml library.

Install dev version from github:

# install.packages("devtools")
devtools::install_github("r-lib/xml2")

Links

Manual: https://rdrr.io/cran/xml2/man/

Tags

  • r-project
By Greg Nowak, 5 February, 2021

Reinstalling and Updating All Current R-Packages To New Version of R

In bash: R -e 'update.packages(checkBuilt = TRUE, ask = FALSE)'

Source: https://community.rstudio.com/t/reinstalling-packages-on-new-version-of…

Tags

  • rscript
  • r-project
By Greg Nowak, 23 January, 2021

Scraping Tools and Browser Automation for Modern Teams

Modern guidance on choosing scraping and browser automation tools, with practical recommendations for Playwright, Puppeteer, and R-based workflows.

Tags

  • scraping
  • browser-automation
  • playwright
  • puppeteer
  • r-project
By Greg Nowak, 9 November, 2017

Fix mailR java issues

You might have a couple of issues with mailR when running on a server.

When installing or after installing the r package: rJava you might encounter the following: libjvm.so: cannot open shared object file: No such file or directory

I fixed this on a ubuntu server with this command: sudo R CMD javareconf
 

Tags

  • Linux
  • Script
  • r-project
By Greg Nowak, 12 April, 2017

Time Stamp in R

How to make a nice time stamp with date and time in R:

now <- strptime(Sys.time(), "%Y-%m-%d%T")
time_stamp <- sprintf("%s", now )

 

Tags

  • r-project
  • rstudio
  • rscript
r-project

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