This challenge was a bit tricky, but quite interesting, so I thought it would be a good topic to talk about and walk through its solution, along with the thought process I applied to build the solution query from scratch.

If you find this article useful or simply enjoy reading it, don’t forget to clap! Or even leave a comment. Authors are always happy about claps and feedback, and it is a great way to let us know we are writing useful articles for you :-)

It makes use of subquery, aggregation with the “group by” clause, sorting using the…

Before getting into the technical, I want to say “Hi”. If you are new to reading my articles, welcome, and I hope this will be useful and/or fun for you. For all readers, if you like this article or you found it useful, please CLAP! It will let me know you read it, and it’s a great way to connect. Even better, leave a comment. I always make sure to respond when I see it.

Here’s the coding challenge, on CodeWars, if you want to give it a try on your own or code along: click here. …

If you’re like me, you work pretty hard to create pretty visualizations, that are easy to read and understand by almost anybody. For example, when I plot a bar graph, I want to be able to highlight a certain bar, use different colors for the ticks on the x-axis, choose a nice font for the title, etc.

Below is an example of such a bar plot that I created for one of my projects. The data file can be downloaded from here. If you find this article useful or if you simply like it, please CLAP!

Import the necessary libraries.

This article describes two popular distributions, the Normal Distribution and the Beta Distribution. It also shows how these can be generated and plotted in Python. If you find this article interesting, helpful, or you simply just liked it, remember to CLAP!! Please don’t hesitate to contact the author with questions, feedback, and if any errors were made. Enjoy, and happy coding!

The normal distribution is a probability function that describes how the values of a variable are distributed. It is a symmetric distribution where most of the observations cluster around the central peak and the probabilities for values further away…

In this article I will walk you through a simple example for how you can deploy a Dashboard you have created in Python to Heroku. If you find this article useful, don’t forget to CLAP! :-)

Please have below items ready and working:
- Python
- Heroku Account — go to
- Text editor of your choice
- Data from the WHO website, WHS8_110.csv

Creating a Dashboard in Python using Plotly and Dash is out of this article’s scope. If you would like to use the Dashboard I created, you can find the code here, and you’re welcome to…

It is my 6th week in the Data Science Immersive Program, and I’m still loving it. It is quite amazing how much we have covered over the last weeks, and even though it may seem like information overload some days, I am learning a lot and I am really happy with all the skills I am acquiring.

We have learned how to gather data when it is not readily available; how to clean data, engineer features, and prepare for Exploratory Data Analysis and Modeling. The Mathematics behind these algorithms are truly impressive, and even though I cannot claim — yet…

A friend talked to me about Data Science and General Assembly. She is a very successful Data Scientist, and taking the GA Data Science Immersive course was one of the main advantages she had when looking for a job. This is not to say that taking the course worked like magic. …

Being a student in the DSI program means having to complete lots of homework. The most challenging homework, in my humble opinion, are the projects. Every two weeks we are assigned a project, which we have to later present to our instructors and classmates. My first project was terrifying, not because it was a complicated problem, but because I was not sure what to expect, and was sort of drawing a blank when trying to think of something as basic as a “problem statement”.

Here I was thinking that being a Data Scientist meant the problem was going to be…

Cristina Sahoo

I am a Data Scientist with 10+ years experience in the Tech Industry, and a background in Education and Customer Service.

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