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Data · dataset · 2026

baselinenowcast: Baseline Nowcasting for Right-Truncated Epidemiological Data

Listed in LSHTM Data Compass

Nowcasting right-truncated epidemiological data is critical for timely public health decision-making, as reporting delays can create misleading impressions of declining trends in recent data.

Description

This package provides nowcasting methods based on using empirical delay distributions and uncertainty from past performance. It is also designed to be used as a baseline method for developers of new nowcasting methods.

For more details on the performance of the method(s) in this package applied to case studies of COVID-19 and norovirus, see our recent paper at 10.12688/wellcomeopenres.25027.2. The package supports standard data frame inputs with reference date, report date, and count columns, as well as the direct use of reporting triangles, and is compatible with 'epinowcast' objects. Alongside an opinionated default workflow, it has a low-level pipe-friendly modular interface, allowing context-specific workflows.

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It can accommodate a wide spectrum of reporting schedules, including mixed patterns of reference and reporting (daily-weekly, weekly-daily). It also supports sharing delay distributions and uncertainty estimates between strata, as well as custom uncertainty models and delay estimation methods.

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Where it is published

Catalogue records · 1

Topics

Inferred from text
Epidemiology 75%
Provenance · 1 source records, 9 field assertions
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