Train the Linear Regression 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 display_scores() function.
Create a LinearRegression instance, called lin_reg, using default constructor (without any arguments)
Call cross_val_score() function, to perform training and cross validation and to calculate the mean absolute error scores, by passing to it the following:
LinearRegression object lin_reg
trainingCols dataframe
trainingLabels dataframe
parameter cv with value 10 (cv=10)
scoring parameter with value "neg_mean_absolute_error"
lr_mae_scores = -cross_val_score(<<your code comes here>>)
display_scores(lr_mae_scores)
Call cross_val_score() function, to perform training and cross validation and to calculate the mean squared error scores, by passing to it the following:
LinearRegression object lin_reg
trainingCols dataframe
trainingLabels dataframe
parameter cv with value 10 (cv=10)
scoring parameter with value "neg_mean_squared_error"
lr_mse_scores = np.sqrt(-cross_val_score(<<your code comes here>>))
display_scores(lr_mse_scores)
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