posterior 1.4.1

Delay applying tibble::num() formatting to output from summarise_draws() until print() is called so that summary output can be easily converted to a vanilla data frame (#275).

posterior 1.4.0

Added new rvar_factor() and rvar_ordered() subtypes of rvar() that work analogously to factor() and ordered() (#149). See the new section on rvar_factors in vignette("rvar").
The draws_df(), draws_list(), and draws_rvars() formats now support discrete variables stored as factors / ordereds (or rvar_factors / rvar_ordereds). If converted to formats that do not support discrete variables with named levels (draws_matrix() and draws_array()), factor-like variables are converted to numerics.
Made match() and %in% generic and added support for rvars to both functions.
Added modal_category(), entropy(), and dissent() functions for summarizing discrete draws.
Allow lists of draws objects to be passed as the first argument to bind_draws() (#253).
Improving formatting of summarise_draws output via tibble::num.
print.rvar() and format.rvar() now default to a smaller number of significant digits in more cases, including when printing in data frames. This is controlled by the new "posterior.digits" option (see help("posterior-package")).
Implemented faster vec_proxy.rvar() and vec_restore.rvar(), improving performance of rvars in tibbles (and elsewhere vctrs is used).

Ensure that as_draws_rvars() preserves dimensions of length-1 arrays (#265).
Fix some minor compatibility issues with rvar, vctrs, dplyr, and ggplot2 (#267, #269).

Implement for_each_draw(x, expr), which executes expr once for each draw of x, exposing variables in x as arrays of the shape implied by the indices in their names (#224).
Implement subset_draws(), thin_draws(), and resample_draws() for rvars (#225).
Allow weights to be optional in resample_draws() (#225).
Add an implementation of drop() for rvars.
Speed up subsetting of draws_list objects. (#229, #250)

Support remaining modes of diag() for rvars (#246).
Better parsing for named indices in as_draws_rvars(), including nested use of [, like x[y[1],2] (#243).
Allow 0-length rvars with ndraws() > 1 (#242).
Ensure 0-length rvars can be cast to draws formats (#242).
Don’t treat length-1 rvars with more than 1 dimension as scalars when casting to other formats (#248).

fix hidden variables in bind_draws.draws_df when binding more than two objects thanks to Jouni Helske (#204)
fix output of pillar::glimpse() when used on a data frame containing rvars (#210)
drop "draws" and "draws_df" classes from draws_df objects if meta data columns are removed by a dplyr operation (#202)
fix output of print.draws_df() on objects with unrepaired draws (#217)
ensure variance() works properly with summarise_draws() (#219)

use matrixStats to speed up convergence functions (#190) and rvar summaries (#200)

ensure that as_draws_rvars() works on lists of lists (#192)
fix some vector recycling issues with rvar_rng (#195)
ensure that subset_draws() respects input variable order, thanks to Karl Dunkle Werner and Alexey Stukalov (#188)

No longer check for constant-per-chain input in effective sample size diagnostics as this is overly conservative especially for ess_tail. (#198)