I’m an NHS data analyst based in Scotland.

I’ve been using R for 10 years, and authored an introductory SQL course that had over 100K students during my time on the platform.

Why write about R?

Because I like it, there is a lot to learn, and there are plenty of SQL and Excel blogs out there already.

Topics covered in this blog

  • tidyverse
  • data.table
  • data wrangling and manipulation
  • parameterised SQL
  • data visualisation
  • text mining and sentiment analysis
  • package development
  • R programming
  • mapping & working with spatial data

See Projects for more

Why should I listen to you?

Because I’ll help you learn.

I know what it is to struggle to understand something, and how good it feels when you finally get it, and can move on with your work.

I am always delighted to hear that my posts are helping others.

I am told that I’m good at simplifying and explaining things - I think that is a useful quality.

I am self taught - I don’t have a background in computing or statistics, so if I can do this, you can too.

See Data by John for more


© 2016 - 2023. All rights reserved.