I am looking for implementation in R, VBA, C++, Python (or in any other programming language) of one-factor Hull-White short rate interest model according to the following article:
Hull J. and White A., "The General Hull-White Model and Super Calibration", Financial Analysts Journal, volume 57, issue 6.
Link:
https://www.cfapubs.org/doi/abs/10.2469/faj.v57.n6.2491
Is there any R package which covers model mentioned above?