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TechNotes by Abby
TechNotes by Abby

31 Followers

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Nov 22, 2022

Ruby on Rails: Change database from SQLite to PostgreSQL.

As a junior developer, i discovered that Heroku does not support the SQLite database just as I was deploying my application. If you're lucky, you might have known this already and so you set up your application using a PostgreSQL database from the beginning using the command below: rails new…

Rails

2 min read

Ruby on Rails: Change database from SQLite to PostgreSQL.
Ruby on Rails: Change database from SQLite to PostgreSQL.
Rails

2 min read


Nov 2, 2022

Understanding the MVC(Model View Controller) Architecture in Rails Applications

Ruby on Rails Tutorial — Part 2 — Now, before we delve into building a ruby on rails application, I just wanted to get the basics out of the way. Rails is a Ruby framework that is used to build database — backed full stack applications for the web. In order to do so, it follows a certain…

2 min read

Understanding the MVC(Model View Controller) Architecture in Rails Applications
Understanding the MVC(Model View Controller) Architecture in Rails Applications

2 min read


Oct 28, 2022

Easily Set Up your Rails Application using a PostgreSQL Database

Ruby on Rails Tutorial— Part 1 — One of the most annoying errors that I encountered while I was learning to create rails applications was how to properly set up my PostgreSQL database. Rails is a Ruby framework that is used to build database — backed full stack applications for the web. …

3 min read

Easily Set Up your Rails Application using a PostgreSQL Database
Easily Set Up your Rails Application using a PostgreSQL Database

3 min read


Apr 8, 2022

Unsupervised Machine Learning

The Logic behind it. — In an ideal world, all existing data would have labels. But that isn't always the case. Think of a scenario where patients visit a hospital with chest pains and have their chest scans taken in order to get a diagnosis. Some are healthy and others are not. However, you have…

3 min read

Unsupervised Machine Learning
Unsupervised Machine Learning

3 min read


Dec 6, 2021

Handle your missing data like a pro!

Part 1: Missing Data Series — Deleting missing data — I’m sure you’ve heard that data scientists spend around 70% of their time in data cleaning. Basically, this means dealing with duplicated data, misspellings, transforming the data, looking for outliers, checking whether you have up to date data among others. One very common feature of data cleaning that you will…

Data Science

4 min read

Handle your missing data like a pro!
Handle your missing data like a pro!
Data Science

4 min read


Oct 12, 2021

Master the Art of Web Scraping!

Learn Beautiful soup, web scraping, and sending email alerts through this fun project! — A lot people have come up with smart ways to make purchases. And in this era of technology, there are modern solutions for just about anything. For instance, companies are mushrooming everywhere that help you find the best deals. But how exactly do they do that? …

7 min read

Master the Art of Web Scraping!
Master the Art of Web Scraping!

7 min read


Oct 1, 2021

Don’t be afraid of running into errors! Sometimes, you can actually catch ‘em.

When writing code, it is almost inevitable that you will run into errors. And knowing how to debug and catch the errors is probably one of the most important skills any programmer should have. Perhaps one of the most salient reasons is: Errors stop your program from running. Basically, it…

5 min read

Don’t be afraid of running into errors! Sometimes, you can actually catch ‘em.
Don’t be afraid of running into errors! Sometimes, you can actually catch ‘em.

5 min read


Sep 30, 2021

Dummy Variables in Machine Learning.

Machine Learning Models work very well with numerical data. However, data does not always come in such a format. Data will sometimes come in string format and this information has to somehow be incorporated into the model training. Take an example of the data set below. In the dummy data…

4 min read

Dummy Variables in Machine Learning.
Dummy Variables in Machine Learning.

4 min read


Sep 6, 2021

The NATO-Phonetic Name Generation Project

Understand Python List & Dictionary Comprehensions and apply these concepts to a real project. — Project based learning has long proven to be one of the most effective code-learning techniques. I have come across a lot of people pouring through hours of tutorials unsuccessfully, and at the end they are unable to put together some code to create a working project. The NATO-Phonetic project explained…

8 min read

The NATO-Phonetic Name Generation Project
The NATO-Phonetic Name Generation Project

8 min read


Aug 27, 2021

Understanding Multiple Linear Regression Models

Imagine you wanted to predict whether someone had a risk of contracting diabetes. There would be a number of factors to consider. Some of those factors would be their age, their sugar levels, their blood pressure, their family history, their weight, their body mass index (BMI) and so on. …

3 min read

Understanding Multiple Linear Regression Models
Understanding Multiple Linear Regression Models

3 min read

TechNotes by Abby

TechNotes by Abby

31 Followers

Technical Writer with a knack for explaining hard things in an easy way. All things tech!

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