Undefined function 'mean_squared_error' for input arguments of type 'table'.

rf_classifier = TreeBagger(100, X_train, y_train,'Method','classification','OOBPredictorImportance', 'On');

Undefined function 'mean_squared_error' for input arguments of type 'table'.

Error in RF_Classification (line 39)

oob_mse = mean_squared_error(y_train, predict(rf_classifier, X_train));

Undefined function 'loss' for input arguments of type 'TreeBagger'.

Error in RF_Classification (line 45)

test_accuracy = 1 - loss(rf_classifier, X_test, y_test);

I request you to kindly help me out to fix these above errors.

Thank you very much.

Sanchit Singh

Answer 1

[Walter Roberson]

When you call TreeBagger there are two different syntaxes:

TreeBagger(NUMBER, X, Y)

or

TreeBagger(NUMBER, TABLE, ...)

You are using the NUMBER, X, Y syntax, but your y_train is a table()