Changelog

Source: NEWS.md

L3bin 0.1.0

First versioned release, adding a version number, documentation housekeeping and an archived copy of the scheme’s specification.

Documentation

• The NASA OBPG page “Integerized Sinusoidal Binning Scheme for Level 3 Data” (https://oceancolor.gsfc.nasa.gov/resources/docs/format/l3bins/) is no longer reliably available. An archived Markdown copy, with its figures and the raw MHTML capture, is now included under inst/l3bins/, recovered from the Wayback Machine capture of 2026-01-06 (https://web.archive.org/web/20260106075308/https://oceancolor.gsfc.nasa.gov/resources/docs/format/l3bins/).

• The archived page is also hosted on the package website as the article “Integerized Sinusoidal Binning Scheme for Level 3 Data” (https://hypertidy.github.io/L3bin/articles/l3bins.html).

• The package URL, the README and the L3bin() reference now point to the archived copy rather than the original NASA page.

• The README credits the SeaWiFS L3 bin scheme as the inspiration for storing per-cell sums and sums of squares on a discrete global grid, as explored in mdsumner/trend.sst.

• The README warns that bin numbers are stored as integers, which overflow beyond roughly 41000 rows (#3).

Other changes

• bin_from_lonlat() now keeps lon = 180 in the last bin of its row. It previously returned the first bin of the next row, because the clamp at the antimeridian seam was commented out. This also affects crop_bins() for extents that reach 180.

• Added a testthat suite covering bin/lonlat round trips, grid structure, extents and cropping.

• GitHub Actions workflows updated to current versions.

• The default branch is now main (previously master).

• Fixed typos in the README and DESCRIPTION, and regenerated the documentation with roxygen2 8.1.0.

Functions

The package provides L3bin(), bin_from_lonlat(), lonlat_from_bin(), extent_from_bin(), crop_bins() and row_from_lat(). These were previously part of sosoc/croc.