How do I create a decision tree

Question

I'm very new to the concept of machine learning. I was reading about decision trees and would like to know how to create a decision tree? Thank you..

Answer 1

Let us consider the following example. Suppose a group of astronauts has discovered a new planet. Now to know if a human race can begin there, we'll have to take a couple of things into consideration. A few obvious factors would be, whether the water exists, the temperature, flora, and fauna exist, etc. Let's have a look at how to make a decision tree based on these factors.

The habitable temperature falls into the range of 0 to 100 Celsius.

Whether water is present or not?

Whether flora and fauna flourishes

The planet has a stormy surface?

And we have our perfect decision tree!

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