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Train the Decision Tree Model on the 'Training' data set using cross-validation and calculate 'mean absolute error' and 'root mean squared error' (RMSE) for this model.
Display these scores using
Create a DecisionTreeRegressor instance, called
dec_reg by passing random seed of 42 to the DecisionTreeRegressor.
cross_val_score() function, to perform training and cross validation and to calculate the mean absolute error scores, by passing to it the following:
DecisionTreeRegressor object dec_reg trainingCols dataframe trainingLabels dataframe parameter cv with value 10 (cv=10) scoring parameter with value "neg_mean_absolute_error" dt_mae_scores = -cross_val_score(<<your code comes here>>) display_scores(dt_mae_scores)
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