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t.rast.stl: new addon for time series decomposition#1748

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OSGeo:grass8from
ecodiv:t_rast_stl
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t.rast.stl: new addon for time series decomposition#1748
ecodiv wants to merge 10 commits into
OSGeo:grass8from
ecodiv:t_rast_stl

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@ecodiv

@ecodiv ecodiv commented Jun 13, 2026

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Extracts the time series of a single point from a space-time raster dataset (strds), regularizes it onto an evenly spaced axis, runs an STL decomposition (seasonal / trend / remainder) and produces a multi-panel plot.

Provides an easy way to quickly check how e.g., vegetation, temperature, or moisture is developing at a specific location, based on raster time series.

What: Extracts the time series of a single point from a space-time raster dataset (strds), regularizes it onto an evenly spaced axis, runs an STL decomposition (seasonal / trend / remainder) and produces a multi-panel plot.

Why: Provides an easy way to quickly check how something like vegetation, temperature, or moisture is developing at a specific location, based on raster time series.
@ecodiv ecodiv requested a review from veroandreo June 13, 2026 10:59
@ecodiv ecodiv self-assigned this Jun 13, 2026
@ecodiv ecodiv added the new addon PR contains a new addon or issue proposes one label Jun 13, 2026
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
@ecodiv ecodiv marked this pull request as draft June 13, 2026 11:38
Comment thread src/temporal/t.rast.stl/t.rast.stl.md
@ecodiv ecodiv marked this pull request as ready for review June 13, 2026 15:15
@echoix echoix changed the title t.rast.stl: new addon for time series decomposition t.rast.stl: new addon for time series decomposition Jun 13, 2026
Added:

- Shape-constrained (monotone) Generalized Additive Model trend curve (pyGAM)
- Draw a second strds
Comment thread src/temporal/t.rast.stl/t.rast.stl.py Outdated
ecodiv and others added 4 commits June 21, 2026 23:38
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