Laminar Insight-Arafath Hossain

Text Analysis on Youtube Videos Posted About ‘Bangladesh’

What do the Youtube video titles tell us about the country?

This analysis was part of an ongoing exploratory study about the contents related to Bangladesh, a south asian country, in different online social media platforms. In a previous analysis tweets that contained Bangladesh were analyzed to understand the most common areas that people tweeted about Bangladesh and how public sentiments were reflected. In this article a similar study was conducted on the videos shared on Youtube that had Bangladesh in their titles.

Posted by Arafath Hossain Tuesday, March 30, 2021

Yet One More Plot to Show US's Race Inequality!

A short tutorial that shows the growing difference in student debt among the major three races in the US.

Animated plot is a great way to show a trend. In this tutorial I looked into the students debt data that came from TidyTuesday. Using an animated line graph I will show how student loan has grown disproportionately among the three major three races in the US.

Posted by Arafath Hossain Monday, February 15, 2021

The Myths, Not So Myths, and Truths about Data Science

What to stay out of and look out for in your Data Science learning journey.

Data Science has been one of the most talked-about job positions out there, yet it is one of the most illusory ones among the job seekers; honestly, to some recruiters too! Looking back to my more confused newbie self and talking to many in the same state, I thought I would take a shot at it and try to debunk some myths or maybe validate some!

Posted by Arafath Hossain Sunday, February 7, 2021

Who's Missing?

Writing a Python utility function to calculate feature wise missing values.

This is mostly a tutorial about how to write utility functions in Python. We will use finding out missing values as a use case. Also I will use RStudio as the IDE to demonstrate Python codes. So I will leverage Reticulate package to use both Python and R.

Posted by Arafath Hossain Tuesday, January 12, 2021

Have R Look After Your Stocks!

Use R to check stock prices for you and notify you.

If you like to dabble in the stock market as a side hustle or just out of sheer curiosity, you may have faced the dilemma of how frequently you should check your stock price. The on and off checking of price can be a real productivity killer. This tutorial will show you how you can do that constant price checking using R and have it send you a message when something interesting happens!

Posted by Arafath Hossain Saturday, August 29, 2020

Automatically Build Data Tables from US Census Survey!

Augment tidycensus function to automatically collect Census Bureau data.

This is a tutorial that demonstrates some basic to somewhat advanced steps of writing functions in R in the context of a real life project. I used tidycensus package to collect census data, added a wrapper function to enhance functionality of the out of the box functions, showed how to use tryCatch functionality to add fallback functionality to a function.

Posted by Arafath Hossain Friday, July 10, 2020

Is that Red Wine Good Enough?

Predicting sample wine quality using binary classification model.

This is a tutorial prepared for the marketing analytics students of a business undergraduate program. The goal was to introduce them to the basic workflow of predictive modeling and demostrate how they can document their projects.

Posted by Arafath Hossain Sunday, July 5, 2020

Automate Your Repetitive Reports!

Automating a task using R and windows task manager.

R can be used as a great tool to automate your repeat works such as: refreshing a report everyday based on new data or running some ETL process and storing the data in Data Base. In this article I will show how to automate a report creation and communication by using R and Windows scheduler.

Posted by Arafath Hossain Friday, January 10, 2020

Topic Modeling and Sentiment Analysis on Tweets

What people talk about and how they feel about what they say.

Posted by Arafath Hossain Thursday, May 10, 2018

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