- Two vignettes have been added to help users get started.
- Little tour now cycles twice through variable list, in a randomised order.
- Two new projection pursuit indexes have been added, based on function from the archived package mbgraphic.
- A slice tour is now available using the function animate_slice(). A new index for searching for interesting slices is available.
- A principal component analysis tour display is now available, that renders the axes of the original variables. This requires appropriate scaling of data ahead of time. See the example code.
- A new record option is available to print out diagnostic information for every step. Bind the animate code to a name will store the record object. The ferrn package at https://github.com/huizezhang-sherry/ferrn can be used to diagnose the optimisation techniques.
- Improvements to the optimisation functions have been made: search_better has an interrupt if a higher index is achieved mid-path; search_polish takes a best basis from another routine, and makes small steps to get a very best projection close by.
- Set the default fps to 10, to compatibly draw with RStudio window.