Let me present some stats on planes, trains, and automobiles in selected countries from around the globe. Specifically, I present metrics on trips by each mode of transportation, reported accidents, and finally, scores for each mode for each of the countries in list. I also explain the data sources, my methodology, and caveats. Sit back, […]
Tag: datascience
Textual Responses To Metrics and Visuals
It’s common for surveys to take in text responses in various forms, but in the end, to get insights, they need to be quantified for measurements. The process of converting textual responses into quantifiable units is commonly referred to as quantification or scaling. In survey research, this approach is often part of Likert scaling or […]
Control charts: when, how and why
Control charts are essential for statistical quality control purposes, such as for monitoring performance and defects measurements. Control charts are also known as Shewhart charts or process-behavior charts as they are tools used to monitor and analyze the behavior of a process over time. They help identify variations in the process and determine whether those […]
Creating Word Clouds from Google Trends
Google Trends platform provides interesting view into what the world is searching online. In our age of digital information, it has become a critical tool for understanding the world’s curiosities and behaviors. It allows us to explore the popularity of search queries across many regions and languages over time. Marketers looking to gauge consumer interests, […]
Creating a data-driven, dynamic cause-and-effect chart
In this post, I share my method of creating a chart to show how events impact another variable such as sales and prices in a data-driven, easy-to-read, and dynamic way. Think of it as a cause-and-effect visualization. Let’s look at an example scenario where this type of chart can be very useful. This is done […]
Understanding Step Charts (and creating them in Excel, Python)
Step charts are suitable for showing fluctuating or irregular values over time. There’s no built-in Step chart type in Excel, so most people use a Line chart instead, which is not really ideal or sometimes accurate (I’ll explain that below). With proper data shaping, it’s possible to create Step charts in Excel. In this post, […]
Prisoners of the world
In this post, I touch on a complex and touchy issue of the human society. We look at the prisoners’ population around the world for selected countries, while casting a wide net of diversity. With the data and visualizations presented, we should be able to answer: Which countries have the highest number of prisoners? Which […]
Present Value and Future Need with Inflation
Ugh…Inflation! No one seems to like it but what does it mean? How can we measure how much purchasing power we’re losing due to inflation? Questions such as these and more are answered in this post. Inflation is the rate at which the general level of prices for goods and services rises, eroding the purchasing […]
Calculating Playoff Chances
With the NFL regular season winding down after week 15, we have a pretty good idea of which teams are definitely out of the playoff hunt, which teams have clinched a playoff berth, but the rest are still up in the air. In this blog post, I calculate the chances of making the playoff for […]
Vehicles: Number of cars, density and more from around the world
In this post, I’m sharing some data on number of vehicles, their density taking into account the population, and other interesting metrics for a selected number of countries around the world. The visualizations and analysis will take you on a journey of telling the stories and takeaways from the numbers. The selected countries presented here […]