Dear Gretl Community, I am happy to announce the initial release of the KNN (K-Nearest Neighbors) package for Gretl. This package introduces a comprehensive suite of tools for performing both (multi-class) classification and regression tasks using the KNN algorithm, directly within the Gretl environment. Key Features: - **Flexible Model Fitting**: Fit your KNN model using a variety of data splitting methods, including k-fold and leave-one-out cross-validation, as well as recursive and rolling window techniques. - **Standardization Support**: Automatically standardize features before model fitting, with separate standardization for training and test sets during cross-validation. - **Comprehensive Scoring**: Evaluate model performance with a range of metrics, including Precision, F-Score, and more, tailored to both classification and regression tasks. - **Optimal Neighbor Selection**: Utilize cross-validation to determine the optimal number of neighbors for your model, enhancing prediction accuracy. - **GUI interface**: Call the interface via the menu "Model -> Robust estimation --> KNN regression + classification" Getting Started: To install the KNN package, simply use the Gretl command interface or the GUI package manager. For detailed documentation on using the package, including function parameters and return values, please refer to the included help file. Happy Modeling, Artur _______________________________________________ Gretl-users mailing list -- gretl-users(a)gretlml.univpm.it To unsubscribe send an email to gretl-users-leave(a)gretlml.univpm.it Website: https://gretlml.univpm.it/postorius/lists/gretl-users.gretlml.univpm.it/

Please try the following command: pkg install knn This works fine here. ... Am 22.07.24 um 16:46 schrieb Meridiana GeoTopo: > Hi there. > I've been trying to get the package from the server for over a week > now. It says it cannot retrieve it. >

Problem RESOLVED! It was the update to 2024b that I needed.

Sure, thanks for the trouble Windows 64bits Gretl 2023c

On Mon, Jul 22, 2024 at 5:49 PM Sven Schreiber <sven.schreiber(a)fu-berlin.de&gt; wrote: > > Am 22.07.2024 um 23:23 schrieb Meridiana GeoTopo: > > Sure, thanks for the trouble > > Windows 64bits > Gretl 2023c > > Well, gretl 2023c isn't released yet, so you're apparently running a snapshot, but that shouldn't typically be a problem. But which Windows _version_ , like 7, 8, 10, 11? > > Can you install any other function package? If not, it's probably best to re-install gretl itself first. One further thought. I notice that knn depends on extra and CvDataSplitter. The 'extra' package is built-in so that shouldn't be a problem, but maybe there's a problem with auto-downloading CvDataSplitter if it's not already installed?