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Colin Jaffe

91 articles

Colin Jaffe is a programmer, writer, and teacher with a passion for creative code, customizable computing environments, and simple puns. He loves teaching code, from the fundamentals of algorithmic thinking to the business logic and user flow of application building—he particularly enjoys teaching JavaScript, Python, API design, and front-end frameworks.

Colin has taught code to a diverse group of students since learning to code himself, including young men of color at All-Star Code, elementary school kids at The Coding Space, and marginalized groups at Pursuit. He also works as an instructor for Noble Desktop, where he teaches classes in the Full-Stack Web Development Certificate and the Data Science & AI Certificate.

Colin lives in Brooklyn with his wife, two kids, and many intricate board games.

Articles

April 19, 20264 min read

Visualizing Data Relationships with Seaborn Pair Plots

Making a Seaborn pair plot is ridiculously easy. I mean, you know, assuming you already know how to do it.

April 19, 20263 min read

Model Compilation and Training in Neural Networks

We've built our model. Before we actually run it, which we'll do in just a moment, we need to compile it.

April 19, 20268 min read

Implementing Interactivity in Dash with Callbacks and Decorators

Our next step is to use something called a decorator.

April 19, 20261 min read

Accurate Data Column Order for Predictive Modeling

Quick note on an error I made in the earlier version of this. I had 'Age' second here instead of, I think, fourth.

April 19, 20264 min read

Scraping Book Titles and Prices from Multiple Web Pages Using Python

For our grand finale, let's reset our titles and prices and loop through all possible pages. So the way we're going to do that is if we...

April 19, 20263 min read

Neural Networks: Image Recognition to Handwritten Digits

In section five, we're going to start talking about neural networks. Neural networks are one of the most complex possible models and deal...

April 19, 20263 min read

Building a Dash App: Data Processing and Visualization

So you should be ready now for us to get into the Notebook2 directory and run our app.

April 19, 20262 min read

Website Data Scraping: Navigating Beyond the First Page

What if we wanted to get all the results, not just from the first page as discussed? We have this first page, and we want more.

April 19, 20265 min read

Train-Test Split for Predictive Modeling in Python

We've split up our data into X, which are our inputs, our features, and Y, which is our price in thousands. Now that we've got those, we...

April 19, 20264 min read

Mastering API Access with Python's Requests Library

Accessing the API. Once we've got our URL set up—and this is not a small amount of work—is that learning an API means learning its...

April 19, 20264 min read

Creating Interactive Dashboards with Dash and Bootstrap

We have our data, we have a graph in roughly the form we want it, but we want to take that data, take that process we went through, take...

April 19, 20263 min read

Visualizing Normal Distribution with NumPy

If we take a look at a normal distribution now, again, like the bell curve, we can use a NumPy method to get a normal distribution of...

April 19, 20263 min read

Chicken Bowl Orders Using Group By and Data Visualization

If you're not familiar with group by, that's how we're going to find out some answers about the chicken bowl, what we all want answers on.

April 19, 20261 min read

Data Selection with LOC and ILOC in Pandas

For this next part, I'd like you to get a little practice with loc and iloc. So our task is to get the last three rows and last three...

April 19, 20262 min read

Variance: The Core of Statistical Analysis

The next measurement that we might look at is the variance. I alluded to this in a previous video.

April 19, 20262 min read

Data Frames: Concatenating Columns for Effective Splitting

Now, we have these columns for high, low, and medium. We want to CONCATENATE them to the end of our data frame so that we can later split...

April 19, 20262 min read

Implementing User Input for Percentile Calculation in Python

Let’s give you a little challenge. Take this age group and execute the block as shown.

April 19, 20262 min read

Creating a User Input for Percentile Age Analysis with NumPy

Let’s take a look at one possible solution to this challenge. We’ll create an input box for entering a percentile, which will return the...

April 19, 202612 min read

Enhancing Data Visualization with Dash: Implementing Dynamic Hover Info

So how do we begin to think about how we can make this change?