greta-dev/greta

survival analysis module

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#42 opened on Apr 30, 2017

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help wantedmodule

Description

As previously discussed in #1, a survival analysis module would be useful. It could include convenience functions for censoring and truncation, as well as functionality like this: https://www.rdocumentation.org/packages/flexsurv/versions/1.0.0/topics/Survspline

(cc @jwdink)

Contributor guide

Tech stack
None
Domain
data
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
5
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
over 1 week
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
R programminggreta basicssurvival analysis concepts
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
20
Research direction
This issue proposes adding a survival analysis module to greta. The body references a previous discussion (#1) and the flexsurv package for inspiration, specifically the Survspline function. To proceed, one should review the linked issue #1 for prior context, study the flexsurv documentation to understand the interface, and explore how similar convenience functions for censoring and truncation are implemented in other probabilistic programming frameworks. The goal is to design a set of functions that integrate with greta's tensor based workflow.