This article was first published on the toptal.com blog.

Additionally be noticed that my blog is migrating to new host due to GitHub Pages drops support for RDiscount, Redcarpet, and RedCloth (Textile) markup engines. Old host will...

I was recently browsing stackoverflow.com (often called SO) for the most voted questions under R tag.
To my surprise, many questions on the first page were quite well addressed with the data.table package. I found a few other questions...

R can handle fairly big data working on a single machine, 2B (2E9) rows and couple of columns require about 100 GB of memory.
This is already well enough to care about performance.
With this post I'm going discuss scalability...

When writing a long function which has to deal with multiple checks and complex processes, it is valuable to put comments in the function body. This allows readers (including you) to catch the concept of process workflow without going into...

Have you ever think about accepting payments in your shiny app?
Probably not, but now you can start ;)
Shiny apps are usually single task, not very heavy websites. It may be not so easy to turn them into online...

Under this link you can find today's slides from the Cardiff R User Group meeting.
On the slides you may find interesting packages from the Data Warehousing / ETL perspective. Including few examples and a lot of links to...

Auditing data transformation can be simply described as gathering metadata about the transformation process. The most basics metadata would be a timestamp, atomic transformation description, data volume on input, data volume on output, time elapsed.

If you work with...

Some people find very hard to start using R because it has no GUI.
There exists some GUIs which offers some of the functionality of R.
In this post I would like to focus on one such GUI, a...

Business Intelligence (BI) can be simply described as extracting useful informations from the data. This is quite a broad process as the source data structure (and quality) can vary, as well the useful information structure can vary. More technically process...

Use cases

• Public reports.
  
• Public data sharing, e.g. R packages download logs from CRAN's RStudio mirror - cran-logs.rstudio.com - mask ip addresses.
• Reports or data sharing for external vendor.
• Development works can operate on anonymized PRODUCTION data.
  ...

Hi,
I've just setup my new blog. Most probably it will be R related, data processing, etc.

Some comment about the technology in this very first post.
Posts on the blog are md files. These can be written by...