                       Changes in version 1.2.6.6                       

Bug fixes

  - Added a guard in muhaz() raising an informative error when the
    number of observations exceeds 20000, the implicit limit imposed by
    fixed-size arrays in the underlying Fortran code. Previously this
    would silently overrun the array rather than fail cleanly.

  - Fixed: tied event and censoring times producing hazard estimates
    that depended on the input row order of the tied observations.
    muhaz() sorts observations by time before estimation; when two
    observations shared an identical time, R's stable sort preserved
    whatever order they happened to arrive in, and the underlying
    Fortran risk-set calculation (n - i + 1, where i is sort rank) is
    sensitive to that order. Ties are now broken by placing events
    before censored observations at the same time, matching the
    convention used elsewhere in survival analysis (e.g. survival::Surv)
    that a censored subject is still at risk when an event occurs at the
    same recorded time. This may produce slightly different hazard
    estimates at tied times compared to previous versions; estimates
    away from ties are unaffected. Originally reported in 2021 by Justin
    Clark at UMN.

                Changes in version 1.2.6.5 (2026-07-29)                 

Bug fixes

  - Fixed a crash in muhaz() when a group has zero events. The default
    pilot bandwidth calculation (bw.pilot <- endz/8/(nz^.2)) divided by
    zero when sum(delta) == 0, producing Inf and crashing the downstream
    Fortran routine. nz is now clamped to a minimum of 1, which yields a
    finite bandwidth and a correctly flat zero hazard estimate when no
    events are present. Reported and fixed by Ken Beath
    ken@kjbeath.id.au.

Documentation

  - Fixed man/muhaz.object.Rd: replaced \arguments with \value /
    \describe, resolving an R CMD check NOTE ("Rd files without
    \usage... \arguments should not be documented without \usage").

Package maintenance

  - muhaz is now maintained by David Winsemius dwinsemius@comcast.net,
    following its orphaning by the previous maintainer.
  - Added GitHub Actions / R-hub v2 CI configuration for cross-platform
    checks.

                Changes in version 1.2.6.4 (2021-04-21)                 

  - Version on CRAN prior to this maintainer transition.
