Line of code not compiling in jupyter notebook

Question

I'm trying to build a second dataframe in Jupyter Notebook to train a stronger model.

This is the line of code:

dtc2 = DecisionTreeClassifier(criterion = 'entropy', ccp_alpha=0.04)

I'm getting a type error:

TyperError: init() got an unexpected keyword arugment 'ccp_alpha'

Which is odd because ccp alpha should be a standard jupyter notebook keyword. Please let me know if you have any solutions! Thank you!

I tried writing:

dtc2 = DecisionTreeClassifier(criterion = 'entropy', ccp_alpha=0.04)

Which should be standard line of code to build a dataframe.

Please be kind to everyone regardless of experience level or the questions they ask. @9769953 — sonofjupyter
– sonofjupyter, Commented May 12, 2024 at 18:09
@sonofjupyter Sorry, I don't understand: what are you referring to (if anything at all)? — 9769953
– 9769953, Commented May 13, 2024 at 14:05
Ah, you mean my first comment. Sorry, that was just meant as a correction, but I can see that the phrasing isn't that good, and it can be interpreted differently. I'll replace it by a better version. — 9769953
– 9769953, Commented May 14, 2024 at 20:47
Note that ccc_alpha is not a standard Jupyter notebook keyword (in fact, Jupyter notebooks don't really have keywords). It's a parameter of the scikit-learn class DecisionTreeClassifier. — 9769953
– 9769953, Commented May 14, 2024 at 20:50

9769953 · Accepted Answer · 2024-05-11 17:06:07Z

2

As per the documentation, ccp_alpha is new since version 0.22 of scikit-learn.

Double check your version of scikit-learn, and upgrade as necessary.

answered May 11, 2024 at 17:06

9769953

12.5k3 gold badges31 silver badges46 bronze badges

Sign up to request clarification or add additional context in comments.

1 Answer 1