How to Build Your First Decision Tree in Python (scikit-learn)

Are you intrigued by the power of decision-making in machine learning?
By the end of this tutorial, you'll have a solid grasp of Decision Trees, be capable of implementing them in Python, and understand their role in various machine learning projects.
What you'll discover:
The fundamentals of Decision Trees: How they make decisions and create splits
Hands-on coding: Building Decision Trees in Python using popular libraries
Pruning and preventing overfitting: Strategies for optimizing Decision Tree performance
Interested in discussing a Data or AI project? Feel free to reach out via email or simply complete the contact form on my website.
📧 Email: [e-mail]
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📚 *Practice SQL & Python Interview Questions: stratascratch.com/?via=ryan
WHO AM I?
As a full-time data analyst/scientist at a fintech company specializing in combating fraud within underwriting and risk, I've transitioned from my background in Electrical Engineering to pursue my true passion: data. In this dynamic field, I've discovered a profound interest in leveraging data analytics to address complex challenges in the financial sector.
This KZbin channel serves as both a platform for sharing knowledge and a personal journey of continuous learning. With a commitment to growth, I aim to expand my skill set by publishing 2 to 3 new videos each week, delving into various aspects of data analytics/science and Artificial Intelligence. Join me on this exciting journey as we explore the endless possibilities of data together.
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[@Daniellagnaux]

Amazing! You explained the task concisely and clearly! Thank you very much!

[@RyanNolanData]

Glad it was helpful!

[@SamuelOgazi]

This was so helpful and straight to the point. Tbh, I got the logic from other channels but the implementation here was a breeze. I am dragging my friends here. God bless!

[@RyanNolanData]

Thanks

[@telmagiovana6006]

Thanks for the video! I have a question, in this part that we're talking about the importance of each feature(11:47), is it calculated by the gini?

[@SC-jd4gw]

Thanks so much for your video but i have a question, I follow everything you did but when i do the print(classification_report(y_test, y_pred)) i have 7 rows, not only two. Why did this happen?

[@oleblack]

Great video. Thanks man , this video helped me with my Final assessment

[@RyanNolanData]

No problem

[@fatihahasus1069]

13 is the number of features right? so if I have 60 columns 0:60?

[@aryan8020]

Great video and explanation, didn't believe that you only have 8k subs...

[@RyanNolanData]

I’ve only had the channel for a year. I wish I had more though!

[@andrewhuang1452]

Where is the link of the csv

[@user-iu5nz2gy6l]

Thanks, Ryan. You are the best. Quick question- does it matter if i use the standard scaler for the data. If so, do i perform it before train test split or after? Also, i think it may be best if you put this in front of the Random Forest on your playlist. Thanks again

[@RyanNolanData]

I'll move this infront of it now, thanks. I've been working on revamping the playlists and desxcriptions this week. Preprocess your data before you split btw

[@michaelangelomerza3966]

Hi. I'm still learning python and may I ask. How will you add another data on that? For example I want to predict a new player if he will be among the HOF. My input will be only one. Shall I import a new CSV file containing that data then put it on X_test, and y_test? Thank you.

[@RyanNolanData]

Once you have a model built you can predict on it with inputs.

[@michaelangelomerza3966]

Is it possible to output multiple results for one input? Im currently trying to build a College Course Recommender and the Inputs are based on the student grades, strand, hobbies/likes then output multiple possible courses that fits the inputs? @@RyanNolanData

[@montanaapproves1044]

Hey man, I'm quite new to machine learning and I would like to know what IDE are you using in this video?

[@RyanNolanData]

Google collab

[@montanaapproves1044]

Thanks!@@RyanNolanData

[@srivardhan1042]

@@RyanNolanData it looks like Jupyter.

[@RyanNolanData]

@@srivardhan1042ah probably is, it’s an older vid. I use collab now

[@abdullah.montasheri]

can you share the notebook file?

[@RyanNolanData]

I plan on doing a bulk upload to GitHub in the future for all the videos

[@Nothing-fc3xo]

what the heck is this??😢 I’m literally taking my first AI course and my prof demanded such project like this . she didn’t even explained or taught us Python first

[@RyanNolanData]

Have a lot of Python vids and working on a beginner series so hopefully it helps