SQL (Structured Query Language) has been around for many years and is a very useful tool to access data in small or large scale. If you are like me, that may not be using SQL everyday, but need to use it once in a while. What I like to...
Articles with the Tag Data Analysis
Easy web access log processing with R
I recently had a need to diagnose a problem in my web site, so I wanted to do some analysis of the raw access log file. There are many out-of-the-box analytical utility available but none of them allows me to drill down to the access pattern in more details....
R in the web – with Shiny App
How do you host R application on the internet? One of the available service is from shinyapps.io. This is a hosting service that allows you to deploy your R application to the server, and shared them on your web pages. It was really easy to setup. I used RStudio to develop...
Graphing with R 101
What is R? R is programming language and execution platform for statistical computing and graphics. It is known to be the successor for the S language, which was developed at Bell Laboratory. It focuses on a wide variety of statistical and graphical techniques, including linear and nonlinear modelling, time...