Assignment 1 – Understanding Data Visualization

on 23|11|2014
Filled under: Assignment 1


The World Bank’s Open Data initiative makes available 850 financial data sets, stats on 11,000 projects, as well as knowledge gleaned from 700 surveys. To make this data more accessible, the World Bank has created several apps that let people access specific data, view them in chart or map form and share their creations over social media.



The Carbon Dioxide Information Analysis Center (CDIAC) is the primary climate-change data and information analysis center of the U.S. Department of Energy (DOE).CDIAC’s data holdings include estimates of carbon dioxide emissions from fossil-fuel consumption and land-use changes; records of atmospheric concentrations of carbon dioxide and other radiatively active trace gases; carbon cycle and terrestrial carbon management datasets and analyses; and global/regional climate data and time series.


Data Catalogs Home is the most comprehensive list of open data catalogs in the world. It is curated by a group of leading open data experts from around the world – including representatives from local, regional and national governments, international organisations such as the World Bank, and numerous NGOs.


Browser Statistics and Trends


The source is come form “Browser Statistics” of W3Schools, which is a web developer information website, with tutorials and references relating to web development topics such as HTML, CSS, JavaScript, PHP, SQL, and JQuery. The site provides a reference manual covering many aspects of web programming. I trust it because  it is one of the largest web development sites on the internet, however, there is possibility that the data is unjustified due to  commercial reasons.

The data contains Internet Explorer, Firefox, Chrome, Safari, Mozilla, Opera, Netscape and AOL from 2002-2014. I like to add to this database of the different types of browser in mobile, tablet and PC.

From the statistics  (collected from W3Schools’ log-files since 2002), we can read the long term trends of browser usage.We see that Google Chrome, Firefox, and Internet Explorer are the most used browsers today. Chrome is still booming, Firefox gradually reduces. IE finally stopped decreasing and began to be stabilize.


csv file:web browser usage

data source:

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