Hi,

I am working on Decision Tree practice lab section 4.1. I found that below statement is misleading because taking 0 as input of logarithm with any basis is treated as infinity, instead it’s written as log2(0)=0.

- For implementation purposes, 0log2(0)=0. That is, if
`p_1 = 0`

or`p_1 = 1`

, set the entropy to`0`

I thought I didn’t need an if-else statement to deal with p_1=0 or p_1=1 until I noticed that I relied to wrong statement.

Feel free to correct me if I’m wrong.

Thanks,

awidianto