add random forest predictions as column into test file

Question

I am working in python pandas (in a Jupyter notebook), where I created a Random Forest model for the Titanic data set. https://www.kaggle.com/c/ti

Answer 1

Since

rfc_model_3 = RandomForestClassifier(n_estimators=200)
rfc_model_3.predict(X_test)

returns y : array of shape = [n_samples] (see docs), you should be able to add the model output directly to X_test without creating an intermediate DataFrame:

X_test['survived'] = rfc_model_3.predict(X_test)

If you want the intermediate result anyway, @EdChum's suggestion in the comments would work fine.