To cite package ‘trendseries’ in publications use:

  Oike V (2026). _trendseries: Extract Trends from Time Series_. R
  package version 1.3.0, <https://github.com/viniciusoike/trendseries>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {trendseries: Extract Trends from Time Series},
    author = {Vinicius Oike},
    year = {2026},
    note = {R package version 1.3.0},
    url = {https://github.com/viniciusoike/trendseries},
  }