The book Social Media Mining with R is a timely text for researchers and practitioners, specially those in social sciences who want to apply the method of social media mining and learn basic R. The author provided a good balance of theory and step-by-s... [Read more...]

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Almost 2 years ago, I made a post on creating digital elevation map using R. For that post, I used the basic R plotting function to create the map. Recently, I started learning to use ggplot2 package for visualizing data. Today, I created the same map ... [Read more...]

Last November 2013, PACKT Publishing launched the Introduction to R for Quantitative Finance. The book around  which is around 164 pages (including cover page and back pages) discuss the implementation different quantitative methods used in financ... [Read more...]

On my previous post a year ago (on mapping earthquake recorded for the Philippines), it can be seen that there were no earthquake (epicenter) recorded for the province of Bohol. But on the 15th of October there were more than 40 quakes recorded that hi... [Read more...]

While preparing a class exercise involving the use of overlaying of histogram, I searched Google on possible article or discussion on the said topic. Luckily, I found a blog where the author demonstrated an R function to create an overlapping histogram... [Read more...]

This was a revised version of my previous post about the NSCB article. With the suggestion from Tal Galili, below were the new pie charts and the R codes to produce these plots by directly scrapping the data from the webpage using XML and RColorBrewer ... [Read more...]

Recently, my friend posted on her Facebook account about the article published by the National Statistical Coordination Board (NSCB) about poverty and unemployment in the country.  Looking at the report I saw a lot of tables, so I thought why not ... [Read more...]

The rainfall received by Quezon City, Philippines was almost double of what the city normally receive for the entire month of August, causing flooding and land slide to various villages in the area. [Read more...]

Majority of Metro Manila is affected by floods. Looking at the hourly data from PAGASA weather  station located at Bicutan, Taguig, the graph below will gave the viewers of this blog on the rainfall situation in Manila from August 6 (12:00am)-7(11... [Read more...]

Preparing for a future conference on climate change, I downloaded and extracted average monthly rainfall in the Philippines from worldclim.org. Using maptools, raster, and animation package in R, I produced an animation of average monthly rainfall of t... [Read more...]

This blog demonstrates how to produce political/provincial boundary map (below) using R maptools and raster packages. ## Load required packageslibrary(maptools)library(raster) ## Download data from gadm.org adm [Read more...]

In a teaching demo that I have conducted, I discussed on how R can be used to analyze trends and spatial pattern of poverty incidence in the Philippines. Playing on the data I got from the National Statistical Coordination Board below is what I got.&... [Read more...]

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