Use the power of data analysis to decide where you’re going to travel next!

Photo by Ruth Troughton on Unsplash

With COVID vaccines and better health measures, things are starting to “be normal again” in most aspects and countries are heavily investing in incentives for the tourism sector, especially in parts of Europe where the pandemic is slightly more in control.

While personal safety and wellbeing are of the utmost importance, it would be amazing to get back to traveling and visiting new places soon. So if you like traveling and data analysis as much as I do, stick around, I’ll show you how I used weather data to decide my next travel destination, and spoiler alert, it should be…


A quick comparison of the Brazilian and Portuguese constitutions through Text Mining in R

Photo by Mikhail Pavstyuk on Unsplash

This is a quick and mostly visual comparison of some features of the current Brazilian and Portuguese Constitutions intended to leverage some Text Mining concepts and to look at some similarities and differences of the Constitutions.

What you’ll see here:

  • Text Mining
  • Most frequent words
  • Word clouds
  • TF-IDF

Methods

For this analysis, I used Text Mining concepts and packages in R, and the steps in a nutshell are:

  • Importing the text of the Constitution
  • Removing stopwords, i.e. classes of words like articles, prepositions that don’t really add much value to the text
  • Tokenizing, i.e. reducing the phrases down to words

After…


Photo by National Cancer Institute on Unsplash

Text Mining and Natural Language Processing are two of the most interesting fields right now in Data Mining. Whether you are working with tweets from some controversial political candidate or going through books with hundreds of pages to discover some kind of pattern, there’s a lot you can do right now with the algorithms and packages available in R (or Python, for that matter).

For me, as a bookworm, one of the most interesting possibilities is to take one book and thoroughly analyze it, working mainly towards visualization and discovery of relevant information within the text. …


These functions will elevate your Exploratory Analysis to the next level

Photo by Carlos Muza on Unsplash

The EDA — Exploratory Data Analysis — phase of the Data Mining framework is one of the main activities when it comes to extracting information from a dataset. Whatever your ultimate goal is: Neural Networks, Statistical Analysis, or Machine Learning, everything should start with a good understanding and overview of the data you’re dealing with.

One of the main characteristics of an EDA is that it is a somewhat open process that depends on the toolbox and the inventiveness of the Data Scientist. …


Create dashboards in Grafana using your Postgres database without any hassle

One of Grafana’s available monitoring dashboards — Obtained from Grafana.com

Grafana is a cutting-edge tool when it comes to monitoring your server, service, or database. It connects out-of-the-box with several data sources, it’s easily configurable even for novice users and surprisingly, it’s open-source so you can get in on the action for free if you want.

Postgres is one of the world’s most used databases, also open-source, free and provides great performance with scalability and support from the community. …


Sentinel Hub, one of the best resources for satellite images for your Data Science project

Photo by Tobias on Unsplash

There are a lot of things you can do with satellite images nowadays, be it to use in your geographical analysis system or to aid your statistical analysis on R/Python or any other programming language.

The first question you will (and should) ask yourself though is: where can I find these satellite images? The answer(s) to this question is right here. I’ll show you the best resource where you can find high-quality satellite images from anywhere in the world.

Next, I’ll show how to obtain these images from a certain region. I’ll work with Oporto — a beautiful coastal city…


Get (some) privacy on your Android smartphone and avoid Google eavesdropping on your stuff

Image by DAMIEN MEYER | AFP | Getty Images

Despite all recent claims about security and that they are not sticking the nose — or ears — into our lives, software companies like Google and Apple are more interested than ever in our information. And one of their favorite ways of doing that is listening to everything you say when next to your phone (let’s face it, when are you not next to your phone?).

The tale of smartphones showing targeted ads even when the only thing you did was say something out loud is growing stronger each day. …


Effortless great looking Markdown notebooks in RStudio 1.4

Photo by K8 on Unsplash

R Programming language is one of the main programming languages when it comes to statistical computing, Machine Learning and Data Science, and RStudio is by far the best IDE for working with R Programming Language. Unlike Python where you have dozens of options like Conda, Notebooks, command line, etc., for the folks who are keen to R, it’s pretty much settled that RStudio is the best tool.

One of the coolest things of working with RStudio is editing R Markdown notebooks, similar to what Jupyter Notebooks can give you, but integrated right on the IDE, with lots of parameters and…


For most of us, Google Web Search and the other main Google products are our weapons of choice whenever we need to find anything on the internet or in the real world. Whether it is to get up-to-the-minute news of the Covid pandemic, the latest scores of your favorite sport, or to find out how that tasty dish is made, Google is our #1 source of information right now.

One way of using some of the information Google has on us in our favor is with Google Trends. It makes it easier to discover trends and analyze the behavior of…


Photo by Panos Sakalakis on Unsplash

Battery life is one of the most important factors on a portable device such as a laptop, tablet, or cellphone, especially when yours has a few years under its belt.

Focusing here on laptops and on Windows Operating Systems, few people know that Microsoft included in Windows 7 and above a battery health report generating tool, where you can get a detailed status of your device’s battery health, comparison of design capacity x current capacity, amongst other relevant pieces of information.

It’s easy, it’s quick and you can definitely extract something out of it whether you are a tech-savvy person…

Rafael Belokurows

Aspiring Data Scientist, compulsive reader and just hoping to survive the pandemic one cup of coffee at a time

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