j'ai essayé avec la fonction Library() voici le message qui s'affiche (Warning message:le package ‘Metrics’ a été compilé avec la version R 3.2.3) apparemment le package que j'ai chargé n'est pas compatible avec ma version de Rstudio si j'ai bien compris. The MSE assesses the quality of a predictor (i.e., a function mapping arbitrary inputs to a sample of values of some random variable), or an estimator (i.e., a mathematical function mapping a sample of data to an estimate of a parameter of the population from which the data is sampled).

The data frames mpg_train and mpg_test, and the model mpg_model are in the workspace, along with the functions rmse() and r_squared(). Predict city fuel efficiency from hwy on the mpg_train data. Assign the predictions to the column pred. Predict city fuel efficiency from hwy on the mpg_test data. Assign the predictions to the column pred.

## Eye of the outer realm ng+

Mid back pain after workout

Wc4 modern day mod