AccelStab 2.3.1

This is a minor release that changes the following...

step1_down() and step1_sample_mvt()

• Replaced sigma with chisq for multi-temperature models
• The residual error standard deviation (sigma) is now sampled from its own distribution rather than being treated as fixed.

step1_sample_mvt()

• Updated to align with step1_down():
• Added ... (ellipsis) to support optional arguments passed to minpack.lm::nlsLM() during model fitting.

excursion()

• Updated procedure for excursion() to draw from multi-t dist like used in step1_down() and step1_sample_mvt().