# Blog Archives

## Social Media Mining with R (Book Review)

June 2, 2014
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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...

## Malawi Animated Rainfall Map

June 1, 2014
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Couple of months ago, Charles Langton Vanya of Malawi contacted me on how to make animated rainfall map  in R. I was very busy that I was not able to respond. Anyway, to Mr. Vanya, here is the code you can play on to produce a similar map as below.

## Mindoro Digital Elevation Map Updated

May 30, 2014
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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 ...

## Introduction to R for Quantitative Finance Introduction to R for Quantitative Finance (Book Review)

March 2, 2014
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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...

## Mapping Earthquake in Bohol using R

October 17, 2013
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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...

## Overlapping Histogram in R

March 1, 2013
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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...

## NSCB Sexy Stats Version 2

October 25, 2012
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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 ...

## NSCB Sexy Statistics (Unemployment)

October 25, 2012
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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 ...

## Rainfall Amount Flooding Quezon City Philippines

August 8, 2012
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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.

## August 6-7 Rainfall on Metro Manila

August 7, 2012
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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...