tommyod/KDEpy

SPherical KDE

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#158 opened on Nov 14, 2023

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help wanted

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Description

Hi, Thank you for this very useful package. I'm wondering if it's possible to estimate the kde on a unit sphere data, i.e. the custom grid is defined by the following:

def create_grid(B=16) : Theta = np.linspace(0, 360, 2B + 1) * np.pi / 180 Phi = np.linspace(0, 180, 2B + 1) * np.pi / 180 [T,P] = np.meshgrid(Theta,Phi)

    return T,P

Contributor guide

Research direction
Explore spherical KDE methods (e.g., von Mises Fisher kernel) and check if KDEpy can be extended to support spherical grids by modifying the grid creation to use spherical coordinates.
Tech stack
pythonnumpy
Domain
data
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
PythonNumPy
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65