paleoTS 0.6.1

Major changes

• added capacity to fit many models using state-space models (SSMs) and the Kalman filter
• model-fitting functions now return the convergence code from optim()
• added additional information to paleoTSfit class, which also has a new print method to show an informative summary of these objects
• improved default setting for all optimization functions that improves convergence behavior
• function akaike.wts() is now documented and exported

Minor changes and bug fixes

• the plot method for paleoTS objects now allows the user more control, including specifying axis labels
• bug fix for fitMult() that previously wouldn’t use the hess argument even when specified
• standardized how bounds are handled in L-BFGS-B optimization for non-negative parameters
• bug fix for the function sub.paleoTS(), which returned an incorrect start.age in some situations