JuliaDynamics/RecurrenceAnalysis.jl

[FR] Estimations of `ε`

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#67 opened on Jan 26, 2019

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good first issuewanted feature

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Description

Would be great if we had a function with various methods to estimate ε , the threshold of a recurrence plot.

This could work similarly with estimate_delay which gives delay times for timeseries.

Different methods are described in the book from N. Marwan and citations within, see chapter 1 (we cite the book in most docs). Some of these methods are actually very easy and straightforward and would be a great issue for newcomer contributor.

Contributor guide

Research direction
Study the existing `estimate delay` function as a template. Read Chapter 1 of Marwan's book (referenced in docs) to understand methods for estimating the threshold ε. Choose a straightforward method (e.g., based on recurrence rate) and implement it in a new function `estimate epsilon` or similar. Write tests and update documentation.
Tech stack
julia
Domain
data
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
1
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
JuliaGit
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
85