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Showing posts with the label Programming

Problems when installing R packages

Just a quick post to help others that may be having similar issues when trying to install R packages. When using the install.packages command:  install.packages("package name",lib="/my/own/R-packages/") If you get this error message:  Warning: Unable to access index for repository.. Package is not available for R version 3.2.1... Here is what I did and it worked. On the menu Options at the top of your RStudio, click on Packages, select Set CRAN Mirror . Try changing the location and it should work.

Ubuntu dual-boot setup, choose Windows as default

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I have recently installed Ubuntu as an alternative Operating System onto my PC. Ubuntu is a version of the free Linux operating system, I thought it was about time for me to try it. However, I do wish to keep my Windows stuff unchanged, hence I went for the dual-boot option. The installation was actually very easy. - First I downloaded Ubuntu for Windows here: http://www.ubuntu.com/download/desktop - Then created a installer on a USB stick with these instructions http://www.ubuntu.com/download/desktop/create-a-usb-stick-on-windows - Restarted the computer, and chose to boot from USB at Setup. And everything worked perfectly. However, the PC will now choose to start Ubuntu by default  if you don't choose Windows at restart (on mine it's the third option down), but I actually wanted Windows as the deafult boot option. Luckily this was not diffuclt to change: - Click on the Ubuntu icon, in the searchbar type Terminal. - Click Terminal to bring up...

Becoming a Programmer

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I do like these promotional videos, it gives kids something else to think about when deciding what they want to do in the future. One of the things that I found  incredibly frustrating when I was a teenager (and perhaps still do) was the lack of visibility of what different jobs and career paths actually entails. Sure, you can sign up for internships and work placements, apprenticeships...etc (if you know about the jobs in the first place), but more often than not (which you realize later in life) you were not even aware of those other options out there, let alone going out there to look for opportunities to learn about them.  There should be more of these videos from different industries aiming at young audiences. So that when the time comes, young adults can have more confidence in the career decisions they make, knowing that these decisions were based on the wide variety of options that they have considered. ********* Do you use wifi in public places or travel ...