To cite package ‘yieldcurves’ in publications use:

  Coverdale C (2026). _yieldcurves: Yield Curve Fitting, Analysis, and
  Decomposition_. R package version 0.1.0,
  <https://github.com/charlescoverdale/yieldcurves>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {yieldcurves: Yield Curve Fitting, Analysis, and Decomposition},
    author = {Charles Coverdale},
    year = {2026},
    note = {R package version 0.1.0},
    url = {https://github.com/charlescoverdale/yieldcurves},
  }