This is a small quirk I solved recently so wanted to document here. Recently I moved my desktop at work from ubuntu to arch linux. To be honest, it went surprisingly well. Every single thing I had in ubuntu migrated nicely to arch with just one exception – tmap package in R. The “tmap” package …

Last July I attended the talk at LSE by Hadley Wickham on tidyverse and since then I have been working with tidyverse sparingly. My opinion on the whole thing is that it is brilliant! Along with ggplot2 it is clear, concise and powerful for analysis and visualisation of most data I encounter on daily basis. The …

As I have mentioned earlier in the blog, I really don’t like GUI based Integrated Development Environments. The reasons I find them pointless are, I work with a lot of programming languages and environments simultaneously with no intention of being an expert in any one of them. For example, I program in java-android, java-processing, latex, …

  In Part 1 – we installed PostgreSQL database and connected to it from R in the same machine but in most cases we would like to connect multiple instances of R to the same database. For example if 20 people are analysing and updating the same data it makes sense to keep the database …

It is much more convenient and efficient to use a relational database to store complex relational data than using flat data files on the file system, especially when we are dealing with a mix of tabular and spatial data. From my experience I have put together a super simple tutorial for setting up a PostgreSQL …

I have always wanted to develop simple one page apps for android but have been put off by the whole IDE stuff (Eclipse/Android Studio). Personally, I like working with just command-line tools to make and compile programs the way I do for linux. Recently I came across a simple minimal app development environment at http://www.hanshq.net/command-line-android.html. which …

Recently I revisited work I did in 2012 (aosm.r)  where I made a function to extract features from OpenStreetMap data into R for plotting and analysis. When I was fixing the download links in the old script, I realised that it would be interesting to make building footprints for Indian cities. Spent a day on …