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Challenge: Implementing a Random Forest

In this chapter, you will build a Random Forest using the same titanic dataset.

Also, you will calculate the cross-validation accuracy using the cross_val_score() function

In the end, you will print the feature importances.
The feature_importances_ attribute only holds an array with importances without specifying the name of a feature.
To print the pairs ('name', importance), you can use the following syntax:

python

Oppgave

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Import the RandomForestClassifier class.
Create an instance of a RandomForestClassifier class with default parameters and train it.
Print the cross-validation score with the cv=10 of a random_forest you just built.
Print each feature's importance along with its name.

Løsning

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Seksjon 4. Kapittel 3

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Challenge: Implementing a Random Forest

In this chapter, you will build a Random Forest using the same titanic dataset.

Also, you will calculate the cross-validation accuracy using the cross_val_score() function

python

Oppgave

Swipe to start coding

Import the RandomForestClassifier class.
Create an instance of a RandomForestClassifier class with default parameters and train it.
Print the cross-validation score with the cv=10 of a random_forest you just built.
Print each feature's importance along with its name.

Løsning

Bytt til skrivebordet for virkelighetspraksisFortsett der du er med et av alternativene nedenfor

Alt var klart?

Takk for tilbakemeldingene dine!

Seksjon 4. Kapittel 3

Bytt til skrivebordet for virkelighetspraksisFortsett der du er med et av alternativene nedenfor