---
title: "Comment by Simona Jokubauskaite on \"Time Series Forecasting Lab (Part 4) - Hyperparameter Tuning\" | Hashnode"
description: "Hi, model_spec_rf_tune, grid_phtxb_spec are not defined."
url: "https://hashnode.com/posts/time-series-forecasting-lab-part-4-hyperparameter-tuning/61e2ebb11f35f37864469c60/comment/61efd55a87fd2728e7cd2e3b"
---

[Discussion](https://hashnode.com/posts/time-series-forecasting-lab-part-4-hyperparameter-tuning/61e2ebb11f35f37864469c60)

Comment [Time Series Forecasting Lab (Part 4) - Hyperparameter Tuning](https://hashnode.com/posts/time-series-forecasting-lab-part-4-hyperparameter-tuning/61e2ebb11f35f37864469c60)

[Simona Jokubauskaite](https://hashnode.com/@S1mona)

[Jan 25, 2022](https://hashnode.com/posts/time-series-forecasting-lab-part-4-hyperparameter-tuning/61e2ebb11f35f37864469c60/comment/61efd55a87fd2728e7cd2e3b)

Hi, model\_spec\_rf\_tune, grid\_phtxb\_spec are not defined.

[Boris Guarisma](https://hashnode.com/@bguarisma)

[Jan 25, 2022](https://hashnode.com/posts/time-series-forecasting-lab-part-4-hyperparameter-tuning/61e2ebb11f35f37864469c60/comment/61efd55a87fd2728e7cd2e3b#reply-61efd8c487fd2728e7cd2ea1)

Thank you Simona once again. The article has been corrected, "phtxb" should not be used and "model\_spec\_rf\_tune" was for random forest, here we work with prophet boost.