FFTrees

Fast and Frugal Trees. Yep. This is a great package. If you need some quick down and dirty attributes to make a decision this is will help you. We will be going over whether or not a mushroom is poisonous. I will help you set up the problem, by building a Training and Test set. We will build the model and I will show you how to test it and see how the model performed. This tutorial is a good intro to machine/supervised learning.

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Task List


We will cover the following tasks in 22 minutes:


Training the Model


How many are Poisonous

It’s always a good idea to do some EA or Exploratory Analysis before you begin building a model. We will do that today on our response variable.

How many are Poisonous

Training And Test Split

I will show you how to break up a data.frame into training and test sets. Being able to do this quickly will help you in your future modelling.

Training And Test Split

Training the Model

Time to train the model. This is a mathematical feat by the way. We just have been born in the right century as our computers do most of the hard work. But don’t dismiss it, it’s cool.

Training the Model

Confusion Matrix

We will go over the built in plot and confusion matrix in this section. There is also another cool plot that allows us to see how the different trees correspond to accuracy.

Confusion Matrix

Predict

In this chapter we will predict on our Test set and then see how we did by using the table function.

Predict

Introduction

We will go over Rhyme Interface and Introduction. Come on in.

Introduction

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Note: The actual session is completely hands-on where you interact with the software while watching the host's (Chris Shockley) instructions. You can preview the instructions here

Chris Shockley

About the Host


I am a R enthusiast, hiker, and amateur astronomer. My favorite hike is located in Mt. Rainier National Park, my favorite Deep Sky Object is Alberio, and my favorite R package is dplyr (since I use it everyday). I am single too. Maybe because I spend too much time playing? I have a dog named Coog (Lllasa Apso), who would rather be outside than inside, which means I have to take him on a lot of walks. I work as a Data Analyst/Financial Analyst for a Metals Co. located in Seattle, WA. I have been in my current position for 4 years. My hope is that I can help you, even if its with my enthusiasm. Yes you can learn R and the Rhyme Interface will help you. But. You also must take what you learn and practice, practice, practice. So... Let's get after it. See you soon.



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Frequently Asked Questions


In Rhyme, all sessions are completely hands-on. You don't just passively watch someone else use the software. You use the software directly. While following the host's (Chris Shockley) instructions. Using the software is the only way to understand a software!
Nothing! Your host (Chris Shockley) has already installed all required software and configured all data in a virtual machine. You just join the session from a web-browser and start using the software immediately!
Absolutely! We are strong believers in "Information wants to be free."
Please go to https://rhyme.com, sign up for FREE, and get cracking! If you let us know about your session, we will even help you promote it! Email us at help@rhyme.com
Please email us at help@rhyme.com and we'll respond to you within a day!

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