python - How can I get the feature importance of a CatBoost in a …
Nov 24, 2020 · So I was running a Catboost model using Python, which was pretty simple, basically: from catboost import CatBoostClassifier, Pool, cv catboost_model = CatBoostClassifier( …
catboost - numpy.dtype size changed, may indicate binary ...
Jul 7, 2024 · This question is similar to: ValueError: numpy.dtype size changed, may indicate binary incompatibility. Expected 96 from C header, got 88 from PyObject. If you believe it’s different, please …
ERROR while using " pip install catboost - Stack Overflow
Sep 19, 2023 · ERROR while using " pip install catboost " : Failed building wheel for catboost Asked 2 years, 4 months ago Modified 1 year, 6 months ago Viewed 5k times
Newest 'catboost' Questions - Stack Overflow
Aug 29, 2025 · In order to create a personal evaluation function with catboost for binary classification, I used the example mentioned here: How to create custom eval metric for catboost?
Unable to install catboost in R - Stack Overflow
Jan 22, 2019 · Specifically, the installation instructions for installing catboost on a Windows machine can be found on Install from a local copy on Windows. From the latter link: It is strongly recommended to …
Missing values in Categorical Variables in CatBoost (python)
Jan 25, 2022 · CatBoost can encode categorical variables which is great. However, when categorical features contain missing values in the form np.nan, they can't be processed. This is stated in …
What is Pool in Catboost? When to use Pool instead of numpy array?
Jan 22, 2021 · 5 Catboost only works with Pools, which is internal data format. If you pass numpy array to it, it will implicitly convert it to Pool first, without telling you. If you need to apply many formulas to …
ImportError: No module named '_catboost' - Stack Overflow
Nov 15, 2017 · catboost module is present in python package index version 3 (pip3).so try to install it pip3 install catboost (either in ubuntu terminal or python terminal). it worked for me!!
How to create custom eval metric for catboost? - Stack Overflow
Dec 27, 2020 · @SergeyBushmanov The original dataset is about customer churn and I have defined custom metric which calculates "profit" based on TP,TN,FP,FN of binary classification. I would like to …
Using Optuna for CatBoost with batches: got nan on second trial
Nov 29, 2024 · I am trying to tune CatBoost's hyperparameters using Optuna. I need to train my CatBoost model using batches, because training data is too big. Here is my code: def …