Luca Bittarello

Results 7 issues of Luca Bittarello

Is there a reason for which we forbid negative weights ([ref](https://github.com/Quantco/glum/blob/8be33850e695bf56e0bb0fafb32e1d3c6fed7249/src/glum/_glm.py#L173))? Some IV weighting schemes use negative weights to isolate compliers.

I find myself importing them from `glum._distribution`, which isn't very sightly.

It'd be nice to be able to fit GLMs without covariates. It's usually trivial, except when offsets are involved...

Sorry if this issue has been reported before! Consider this example from [the documentation](https://altair-viz.github.io/user_guide/interactions.html#selection-targets-fields-and-encodings): ```python import altair as alt from vega_datasets import data cars = data.cars.url selection = alt.selection_multi(fields=["Origin"]) color...

bug
vega-lite-related

## Description In the Python package of LightGBM 4.0.0, setting the `verbose` parameter to `-1` does not suppress warnings if the objective is a user-defined function. ## Reproducible example ```python...

bug

This PR restructures the distributions to avoid diamond inheritance -- i.e. the gamma, inverse Gaussian, normal and Poisson distributions no longer inherit from the Tweedie distribution. Because it is often...

I'm writing the package [`Microeconometrics`](https://github.com/lbittarello/Microeconometrics.jl), which includes some code to compute covariance matrices. I was wondering if we could merge it into `CovarianceMatrices`, so that I could focus on point...